222131044400 has 120 divisors (see below), whose sum is σ = 562111887120. Its totient is φ = 84122910720.

The previous prime is 222131044397. The next prime is 222131044411. The reversal of 222131044400 is 4440131222.

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, 13314464 + ... + 13331136.

It is an arithmetic number, because the mean of its divisors is an integer number (4684265726).

Almost surely, 2^222131044400 is an apocalyptic number.

222131044400 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 222131044400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281055943560).

222131044400 is an abundant number, since it is smaller than the sum of its proper divisors (339980842720).

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

222131044400 is a wasteful number, since it uses less digits than its factorization.

222131044400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18463 (or 18452 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 222131044400 its reverse (4440131222), we get a palindrome (226571175622).

The spelling of 222131044400 in words is "two hundred twenty-two billion, one hundred thirty-one million, forty-four thousand, four hundred".