2122012120121 has 4 divisors (see below), whose sum is σ = 2214273516672. Its totient is φ = 2029750723572.

The previous prime is 2122012120061. The next prime is 2122012120147. The reversal of 2122012120121 is 1210212102212.

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-2122012120121 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 2122012120121.

It is not an unprimeable number, because it can be changed into a prime (2122012120181) 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, 46130698241 + ... + 46130698286.

It is an arithmetic number, because the mean of its divisors is an integer number (553568379168).

Almost surely, 2^{2122012120121} is an apocalyptic number.

It is an amenable number.

2122012120121 is a deficient number, since it is larger than the sum of its proper divisors (92261396551).

2122012120121 is an equidigital number, since it uses as much as digits as its factorization.

2122012120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92261396550.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2122012120121 its reverse (1210212102212), we get a palindrome (3332224222333).

The spelling of 2122012120121 in words is "two trillion, one hundred twenty-two billion, twelve million, one hundred twenty thousand, one hundred twenty-one".