22103131200 has 168 divisors, whose sum is σ = 72899381760. Its totient is φ = 5863065600.

The previous prime is 22103131153. The next prime is 22103131217. The reversal of 22103131200 is 213130122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22103131200.

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, 904746 + ... + 928854.

Almost surely, 2^22103131200 is an apocalyptic number.

22103131200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22103131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36449690880).

22103131200 is an abundant number, since it is smaller than the sum of its proper divisors (50796250560).

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

22103131200 is a wasteful number, since it uses less digits than its factorization.

22103131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24325 (or 24310 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22103131200 its reverse (213130122), we get a palindrome (22316261322).

The spelling of 22103131200 in words is "twenty-two billion, one hundred three million, one hundred thirty-one thousand, two hundred".