225421912320 has 144 divisors (see below), whose sum is σ = 785390582592. Its totient is φ = 54647726080.

The previous prime is 225421912267. The next prime is 225421912333. The reversal of 225421912320 is 23219124522.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 2626107 + ... + 2710586.

It is an arithmetic number, because the mean of its divisors is an integer number (5454101268).

Almost surely, 2^225421912320 is an apocalyptic number.

225421912320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225421912320 is an abundant number, since it is smaller than the sum of its proper divisors (559968670272).

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

225421912320 is a wasteful number, since it uses less digits than its factorization.

225421912320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336728 (or 5336714 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 225421912320 in words is "two hundred twenty-five billion, four hundred twenty-one million, nine hundred twelve thousand, three hundred twenty".