22501115434204 has 12 divisors (see below), whose sum is σ = 42956674919928. Its totient is φ = 10227779742800.

The previous prime is 22501115434199. The next prime is 22501115434207. The reversal of 22501115434204 is 40243451110522.

It is a super-2 number, since 2×22501115434204² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22501115434204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22501115434207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255694493527 + ... + 255694493614.

It is an arithmetic number, because the mean of its divisors is an integer number (3579722909994).

Almost surely, 2^{22501115434204} is an apocalyptic number.

It is an amenable number.

22501115434204 is a deficient number, since it is larger than the sum of its proper divisors (20455559485724).

22501115434204 is a wasteful number, since it uses less digits than its factorization.

22501115434204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511388987156 (or 511388987154 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 22501115434204 its reverse (40243451110522), we get a palindrome (62744566544726).

The spelling of 22501115434204 in words is "twenty-two trillion, five hundred one billion, one hundred fifteen million, four hundred thirty-four thousand, two hundred four".