82122914121 has 4 divisors (see below), whose sum is σ = 109497218832. Its totient is φ = 54748609412.

The previous prime is 82122914057. The next prime is 82122914123. The reversal of 82122914121 is 12141922128.

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 not a de Polignac number, because 82122914121 - 2⁶ = 82122914057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82122914123) 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, 13687152351 + ... + 13687152356.

It is an arithmetic number, because the mean of its divisors is an integer number (27374304708).

Almost surely, 2^82122914121 is an apocalyptic number.

It is an amenable number.

82122914121 is a deficient number, since it is larger than the sum of its proper divisors (27374304711).

82122914121 is a wasteful number, since it uses less digits than its factorization.

82122914121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27374304710.

The product of its digits is 4608, while the sum is 33.

The spelling of 82122914121 in words is "eighty-two billion, one hundred twenty-two million, nine hundred fourteen thousand, one hundred twenty-one".