222400431200 has 36 divisors (see below), whose sum is σ = 542935054620. Its totient is φ = 88960172160.

The previous prime is 222400431199. The next prime is 222400431233. The reversal of 222400431200 is 2134004222.

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 5 ways as a sum of consecutive naturals, for example, 138999470 + ... + 139001069.

It is an arithmetic number, because the mean of its divisors is an integer number (15081529295).

Almost surely, 2^222400431200 is an apocalyptic number.

222400431200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222400431200 is an abundant number, since it is smaller than the sum of its proper divisors (320534623420).

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

222400431200 is a wasteful number, since it uses less digits than its factorization.

222400431200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278000559 (or 278000546 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 222400431200 its reverse (2134004222), we get a palindrome (224534435422).

The spelling of 222400431200 in words is "two hundred twenty-two billion, four hundred million, four hundred thirty-one thousand, two hundred".