123522213222 has 32 divisors (see below), whose sum is σ = 278359925760. Its totient is φ = 40594153320.

The previous prime is 123522213179. The next prime is 123522213229. The reversal of 123522213222 is 222312225321.

123522213222 is a `hidden beast` number, since 1 + 2 + 3 + 522 + 2 + 132 + 2 + 2 = 666.

It is a super-2 number, since 2×123522213222² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123522213229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16104958 + ... + 16112625.

It is an arithmetic number, because the mean of its divisors is an integer number (8698747680).

Almost surely, 2^123522213222 is an apocalyptic number.

123522213222 is an abundant number, since it is smaller than the sum of its proper divisors (154837712538).

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

123522213222 is a wasteful number, since it uses less digits than its factorization.

123522213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32217665 (or 32217659 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 123522213222 its reverse (222312225321), we get a palindrome (345834438543).

The spelling of 123522213222 in words is "one hundred twenty-three billion, five hundred twenty-two million, two hundred thirteen thousand, two hundred twenty-two".