22022120012004 has 72 divisors (see below), whose sum is σ = 63756865186560. Its totient is φ = 6278444548992.

The previous prime is 22022120011993. The next prime is 22022120012047. The reversal of 22022120012004 is 40021002122022.

22022120012004 is a `hidden beast` number, since 220 + 221 + 20 + 0 + 1 + 200 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94256289 + ... + 94489640.

It is an arithmetic number, because the mean of its divisors is an integer number (885512016480).

Almost surely, 2^{22022120012004} is an apocalyptic number.

It is an amenable number.

22022120012004 is an abundant number, since it is smaller than the sum of its proper divisors (41734745174556).

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

22022120012004 is a wasteful number, since it uses less digits than its factorization.

22022120012004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188746409 (or 188746404 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22022120012004 its reverse (40021002122022), we get a palindrome (62043122134026).

The spelling of 22022120012004 in words is "twenty-two trillion, twenty-two billion, one hundred twenty million, twelve thousand, four".