222120102112121 has 4 divisors (see below), whose sum is σ = 222120215898000. Its totient is φ = 222119988326244.

The previous prime is 222120102112039. The next prime is 222120102112133. The reversal of 222120102112121 is 121211201021222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222120102112121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222120102112093 and 222120102112102.

It is not an unprimeable number, because it can be changed into a prime (222120102712121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53912771 + ... + 57886328.

It is an arithmetic number, because the mean of its divisors is an integer number (55530053974500).

Almost surely, 2^{222120102112121} is an apocalyptic number.

It is an amenable number.

222120102112121 is a deficient number, since it is larger than the sum of its proper divisors (113785879).

222120102112121 is a wasteful number, since it uses less digits than its factorization.

222120102112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113785878.

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

Adding to 222120102112121 its reverse (121211201021222), we get a palindrome (343331303133343).

The spelling of 222120102112121 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred two million, one hundred twelve thousand, one hundred twenty-one".