22012045304 has 32 divisors (see below), whose sum is σ = 43075458720. Its totient is φ = 10525443456.

The previous prime is 22012045303. The next prime is 22012045313. The reversal of 22012045304 is 40354021022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 22012045304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012045303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385534 + ... + 1401330.

It is an arithmetic number, because the mean of its divisors is an integer number (1346108085).

Almost surely, 2^22012045304 is an apocalyptic number.

It is an amenable number.

22012045304 is a deficient number, since it is larger than the sum of its proper divisors (21063413416).

22012045304 is a wasteful number, since it uses less digits than its factorization.

22012045304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23399 (or 23395 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 22012045304 its reverse (40354021022), we get a palindrome (62366066326).

The spelling of 22012045304 in words is "twenty-two billion, twelve million, forty-five thousand, three hundred four".