99221010103121 has 4 divisors (see below), whose sum is σ = 101332095424512. Its totient is φ = 97109924781732.

The previous prime is 99221010103099. The next prime is 99221010103169. The reversal of 99221010103121 is 12130101012299.

It is a happy number.

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-99221010103121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99221010102121) 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, 1055542660625 + ... + 1055542660718.

It is an arithmetic number, because the mean of its divisors is an integer number (25333023856128).

Almost surely, 2^{99221010103121} is an apocalyptic number.

It is an amenable number.

99221010103121 is a deficient number, since it is larger than the sum of its proper divisors (2111085321391).

99221010103121 is a wasteful number, since it uses less digits than its factorization.

99221010103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111085321390.

The product of its (nonzero) digits is 1944, while the sum is 32.

The spelling of 99221010103121 in words is "ninety-nine trillion, two hundred twenty-one billion, ten million, one hundred three thousand, one hundred twenty-one".