13222312400 has 60 divisors (see below), whose sum is σ = 34654490304. Its totient is φ = 4808112000.

The previous prime is 13222312387. The next prime is 13222312421. The reversal of 13222312400 is 421322231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1498136 + ... + 1506935.

Almost surely, 2^13222312400 is an apocalyptic number.

13222312400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13222312400 is an abundant number, since it is smaller than the sum of its proper divisors (21432177904).

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

13222312400 is a wasteful number, since it uses less digits than its factorization.

13222312400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005100 (or 3005089 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13222312400 its reverse (421322231), we get a palindrome (13643634631).

The spelling of 13222312400 in words is "thirteen billion, two hundred twenty-two million, three hundred twelve thousand, four hundred".