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2221213214 = 211210785781
BaseRepresentation
bin1000010001100101…
…0000011000011110
312201210121022201002
42010121100120132
514022112310324
61004224150302
7106021000163
oct20431203036
95653538632
102221213214
11a3a8a9400
1251ba68392
1329524b05c
1417100006a
15d000c3ae
hex8465061e

2221213214 has 24 divisors (see below), whose sum is σ = 3696517944. Its totient is φ = 1000194800.

The previous prime is 2221213213. The next prime is 2221213229. The reversal of 2221213214 is 4123121222.

It is a super-3 number, since 3×22212132143 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221213213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16997 + ... + 68784.

It is an arithmetic number, because the mean of its divisors is an integer number (154021581).

Almost surely, 22221213214 is an apocalyptic number.

2221213214 is a deficient number, since it is larger than the sum of its proper divisors (1475304730).

2221213214 is a wasteful number, since it uses less digits than its factorization.

2221213214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85912 (or 85901 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 2221213214 is about 47129.7487156467. The cubic root of 2221213214 is about 1304.7583438073.

Adding to 2221213214 its reverse (4123121222), we get a palindrome (6344334436).

The spelling of 2221213214 in words is "two billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred fourteen".

Divisors: 1 2 11 22 107 121 214 242 1177 2354 12947 25894 85781 171562 943591 1887182 9178567 10379501 18357134 20759002 100964237 201928474 1110606607 2221213214