321920229000 has 128 divisors (see below), whose sum is σ = 1014336535680. Its totient is φ = 84995360000.

The previous prime is 321920228951. The next prime is 321920229011. The reversal of 321920229000 is 922029123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228222 + ... + 834221.

It is an arithmetic number, because the mean of its divisors is an integer number (7924504185).

Almost surely, 2^321920229000 is an apocalyptic number.

321920229000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321920229000 is an abundant number, since it is smaller than the sum of its proper divisors (692416306680).

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

321920229000 is a wasteful number, since it uses less digits than its factorization.

321920229000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062568 (or 1062554 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 321920229000 in words is "three hundred twenty-one billion, nine hundred twenty million, two hundred twenty-nine thousand".