112221232320021 has 32 divisors (see below), whose sum is σ = 166705151735808. Its totient is φ = 66565278320640.

The previous prime is 112221232320013. The next prime is 112221232320101. The reversal of 112221232320021 is 120023232122211.

It is not a de Polignac number, because 112221232320021 - 2³ = 112221232320013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112221232319973 and 112221232320000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221232520021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333161730 + ... + 333498396.

It is an arithmetic number, because the mean of its divisors is an integer number (5209535991744).

Almost surely, 2^{112221232320021} is an apocalyptic number.

112221232320021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112221232320021 is a deficient number, since it is larger than the sum of its proper divisors (54483919415787).

112221232320021 is a wasteful number, since it uses less digits than its factorization.

112221232320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551641.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 112221232320021 its reverse (120023232122211), we get a palindrome (232244464442232).

The spelling of 112221232320021 in words is "one hundred twelve trillion, two hundred twenty-one billion, two hundred thirty-two million, three hundred twenty thousand, twenty-one".