112210021012121 has 4 divisors (see below), whose sum is σ = 112713204963072. Its totient is φ = 111706837061172.

The previous prime is 112210021012109. The next prime is 112210021012123. The reversal of 112210021012121 is 121210120012211.

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-112210021012121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112210021012121.

It is not an unprimeable number, because it can be changed into a prime (112210021012123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251591975141 + ... + 251591975586.

It is an arithmetic number, because the mean of its divisors is an integer number (28178301240768).

Almost surely, 2^{112210021012121} is an apocalyptic number.

It is an amenable number.

112210021012121 is a deficient number, since it is larger than the sum of its proper divisors (503183950951).

112210021012121 is an equidigital number, since it uses as much as digits as its factorization.

112210021012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503183950950.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112210021012121 its reverse (121210120012211), we get a palindrome (233420141024332).

The spelling of 112210021012121 in words is "one hundred twelve trillion, two hundred ten billion, twenty-one million, twelve thousand, one hundred twenty-one".