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2222021214 = 2337231311951
BaseRepresentation
bin1000010001110001…
…0101101001011110
312201212010101002000
42010130111221132
514022314134324
61004253343130
7106030603650
oct20434255136
95655111060
102222021214
11a40300476
12520197aa6
13295471a6a
141711706d0
15d011b9c9
hex84715a5e

2222021214 has 128 divisors (see below), whose sum is σ = 5936578560. Its totient is φ = 602316000.

The previous prime is 2222021213. The next prime is 2222021233. The reversal of 2222021214 is 4121202222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222021213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1137939 + ... + 1139889.

It is an arithmetic number, because the mean of its divisors is an integer number (46379520).

Almost surely, 22222021214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222021214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2968289280).

2222021214 is an abundant number, since it is smaller than the sum of its proper divisors (3714557346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222021214 is a wasteful number, since it uses less digits than its factorization.

2222021214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123 (or 2117 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2222021214 is about 47138.3200167337. The cubic root of 2222021214 is about 1304.9165331740.

Adding to 2222021214 its reverse (4121202222), we get a palindrome (6343223436).

It can be divided in two parts, 22220 and 21214, that added together give a palindrome (43434).

The spelling of 2222021214 in words is "two billion, two hundred twenty-two million, twenty-one thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 23 27 42 46 54 63 69 126 131 138 161 189 207 262 322 378 393 414 483 621 786 917 966 1179 1242 1449 1834 1951 2358 2751 2898 3013 3537 3902 4347 5502 5853 6026 7074 8253 8694 9039 11706 13657 16506 17559 18078 21091 24759 27117 27314 35118 40971 42182 44873 49518 52677 54234 63273 81351 81942 89746 105354 122913 126546 134619 162702 189819 245826 255581 269238 314111 368739 379638 403857 511162 569457 628222 737478 766743 807714 942333 1138914 1211571 1533486 1789067 1884666 2300229 2423142 2826999 3578134 4600458 5367201 5653998 5878363 6900687 8480997 10734402 11756726 13801374 16101603 16961994 17635089 32203206 35270178 41148541 48304809 52905267 82297082 96609618 105810534 123445623 158715801 246891246 317431602 370336869 740673738 1111010607 2222021214