22105021204 has 12 divisors (see below), whose sum is σ = 44210042464. Its totient is φ = 9473580504.

The previous prime is 22105021199. The next prime is 22105021229. The reversal of 22105021204 is 40212050122.

22105021204 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394732494 + ... + 394732549.

Almost surely, 2^22105021204 is an apocalyptic number.

It is an amenable number.

22105021204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22105021204 is a wasteful number, since it uses less digits than its factorization.

22105021204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789465054 (or 789465052 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 22105021204 its reverse (40212050122), we get a palindrome (62317071326).

The spelling of 22105021204 in words is "twenty-two billion, one hundred five million, twenty-one thousand, two hundred four".