22222222110561 has 16 divisors (see below), whose sum is σ = 32361125791680. Its totient is φ = 13452224387520.

The previous prime is 22222222110553. The next prime is 22222222110563. The reversal of 22222222110561 is 16501122222222.

It is not a de Polignac number, because 22222222110561 - 2³ = 22222222110553 is a prime.

It is a super-2 number, since 2×22222222110561² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22222222110563) 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, 394696746 + ... + 394753043.

It is an arithmetic number, because the mean of its divisors is an integer number (2022570361980).

Almost surely, 2^{22222222110561} is an apocalyptic number.

It is an amenable number.

22222222110561 is a deficient number, since it is larger than the sum of its proper divisors (10138903681119).

22222222110561 is a wasteful number, since it uses less digits than its factorization.

22222222110561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789450656.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 22222222110561 its reverse (16501122222222), we get a palindrome (38723344332783).

The spelling of 22222222110561 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred ten thousand, five hundred sixty-one".