22401203412 has 48 divisors (see below), whose sum is σ = 59745409920. Its totient is φ = 6399393792.

The previous prime is 22401203401. The next prime is 22401203449. The reversal of 22401203412 is 21430210422.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 707668 + ... + 738644.

It is an arithmetic number, because the mean of its divisors is an integer number (1244696040).

Almost surely, 2^22401203412 is an apocalyptic number.

It is an amenable number.

22401203412 is an abundant number, since it is smaller than the sum of its proper divisors (37344206508).

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

22401203412 is a wasteful number, since it uses less digits than its factorization.

22401203412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39600 (or 39598 counting only the distinct ones).

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

Adding to 22401203412 its reverse (21430210422), we get a palindrome (43831413834).

The spelling of 22401203412 in words is "twenty-two billion, four hundred one million, two hundred three thousand, four hundred twelve".