222120121112021 has 32 divisors (see below), whose sum is σ = 244864333929600. Its totient is φ = 199803687552000.

The previous prime is 222120121112003. The next prime is 222120121112039. The reversal of 222120121112021 is 120211121021222.

222120121112021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222120121112003) and next prime (222120121112039).

It is a cyclic number.

It is not a de Polignac number, because 222120121112021 - 2³⁴ = 222102941242837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222120121111984 and 222120121112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120121112221) 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, 15252352886 + ... + 15252367448.

It is an arithmetic number, because the mean of its divisors is an integer number (7652010435300).

Almost surely, 2^{222120121112021} is an apocalyptic number.

It is an amenable number.

222120121112021 is a deficient number, since it is larger than the sum of its proper divisors (22744212817579).

222120121112021 is a wasteful number, since it uses less digits than its factorization.

222120121112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22277.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222120121112021 its reverse (120211121021222), we get a palindrome (342331242133243).

The spelling of 222120121112021 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred twelve thousand, twenty-one".