321224012223400 has 96 divisors (see below), whose sum is σ = 877413281018400. Its totient is φ = 107823444652800.

The previous prime is 321224012223383. The next prime is 321224012223469. The reversal of 321224012223400 is 4322210422123.

It is a super-2 number, since 2×321224012223400² (a number of 30 digits) contains 22 as substring.

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, 5615775810 + ... + 5615833009.

It is an arithmetic number, because the mean of its divisors is an integer number (9139721677275).

Almost surely, 2^{321224012223400} is an apocalyptic number.

It is an amenable number.

321224012223400 is an abundant number, since it is smaller than the sum of its proper divisors (556189268795000).

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

321224012223400 is a wasteful number, since it uses less digits than its factorization.

321224012223400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11231608859 (or 11231608850 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 321224012223400 its reverse (4322210422123), we get a palindrome (325546222645523).

The spelling of 321224012223400 in words is "three hundred twenty-one trillion, two hundred twenty-four billion, twelve million, two hundred twenty-three thousand, four hundred".