10561567122 has 18 divisors (see below), whose sum is σ = 22884340167. Its totient is φ = 3520377036.

The previous prime is 10561567111. The next prime is 10561567187. The reversal of 10561567122 is 22176516501.

10561567122 is a `hidden beast` number, since 1 + 0 + 561 + 5 + 6 + 71 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5280783561 + 5280783561 = 72669^2 + 72669^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=72669.

It is a super-2 number, since 2×10561567122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 423903 + ... + 448125.

Almost surely, 2^10561567122 is an apocalyptic number.

10561567122 is an abundant number, since it is smaller than the sum of its proper divisors (12322773045).

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

10561567122 is an frugal number, since it uses more digits than its factorization.

10561567122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48454 (or 24228 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 10561567122 in words is "ten billion, five hundred sixty-one million, five hundred sixty-seven thousand, one hundred twenty-two".