20232221312 has 32 divisors (see below), whose sum is σ = 40386638880. Its totient is φ = 10095966976.

The previous prime is 20232221309. The next prime is 20232221329. The reversal of 20232221312 is 21312223202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92738 + ... + 221505.

It is an arithmetic number, because the mean of its divisors is an integer number (1262082465).

Almost surely, 2^20232221312 is an apocalyptic number.

It is an amenable number.

20232221312 is a deficient number, since it is larger than the sum of its proper divisors (20154417568).

20232221312 is an equidigital number, since it uses as much as digits as its factorization.

20232221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314760 (or 314748 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20232221312 its reverse (21312223202), we get a palindrome (41544444514).

The spelling of 20232221312 in words is "twenty billion, two hundred thirty-two million, two hundred twenty-one thousand, three hundred twelve".