20221223310312 has 128 divisors (see below), whose sum is σ = 53589034632960. Its totient is φ = 6336537292800.

The previous prime is 20221223310293. The next prime is 20221223310359. The reversal of 20221223310312 is 21301332212202.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 2042336562 + ... + 2042346462.

It is an arithmetic number, because the mean of its divisors is an integer number (418664333070).

Almost surely, 2^{20221223310312} is an apocalyptic number.

It is an amenable number.

20221223310312 is an abundant number, since it is smaller than the sum of its proper divisors (33367811322648).

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

20221223310312 is a wasteful number, since it uses less digits than its factorization.

20221223310312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15243 (or 15239 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20221223310312 its reverse (21301332212202), we get a palindrome (41522555522514).

The spelling of 20221223310312 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty-three million, three hundred ten thousand, three hundred twelve".