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2220213222 = 232413008419
BaseRepresentation
bin1000010001010101…
…1100001111100110
312201201201111222100
42010111130033212
514021333310342
61004150512530
7106006333563
oct20425341746
95651644870
102220213222
11a3a286067
1251b665746
13294c8ab46
14170c1d86a
15cedb0e4c
hex8455c3e6

2220213222 has 24 divisors (see below), whose sum is σ = 4927791960. Its totient is φ = 722020320.

The previous prime is 2220213217. The next prime is 2220213227. The reversal of 2220213222 is 2223120222.

It is an interprime number because it is at equal distance from previous prime (2220213217) and next prime (2220213227).

It is a super-2 number, since 2×22202132222 = 9858693502287242568, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2220213195 and 2220213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220213227) 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, 1503472 + ... + 1504947.

It is an arithmetic number, because the mean of its divisors is an integer number (205324665).

Almost surely, 22220213222 is an apocalyptic number.

2220213222 is an abundant number, since it is smaller than the sum of its proper divisors (2707578738).

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

2220213222 is a wasteful number, since it uses less digits than its factorization.

2220213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008468 (or 3008465 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2220213222 is about 47119.1385956917. The cubic root of 2220213222 is about 1304.5625133266.

Adding to 2220213222 its reverse (2223120222), we get a palindrome (4443333444).

The spelling of 2220213222 in words is "two billion, two hundred twenty million, two hundred thirteen thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 41 82 123 246 369 738 3008419 6016838 9025257 18050514 27075771 54151542 123345179 246690358 370035537 740071074 1110106611 2220213222