22121204034 has 32 divisors (see below), whose sum is σ = 45277246080. Its totient is φ = 7203168000.

The previous prime is 22121203987. The next prime is 22121204041. The reversal of 22121204034 is 43040212122.

It is a self number, because there is not a number n which added to its sum of digits gives 22121204034.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191767 + ... + 284634.

It is an arithmetic number, because the mean of its divisors is an integer number (1414913940).

Almost surely, 2^22121204034 is an apocalyptic number.

22121204034 is an abundant number, since it is smaller than the sum of its proper divisors (23156042046).

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

22121204034 is a wasteful number, since it uses less digits than its factorization.

22121204034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476586.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22121204034 its reverse (43040212122), we get a palindrome (65161416156).

The spelling of 22121204034 in words is "twenty-two billion, one hundred twenty-one million, two hundred four thousand, thirty-four".