22012121039091 has 4 divisors (see below), whose sum is σ = 29349494718792. Its totient is φ = 14674747359392.

The previous prime is 22012121039089. The next prime is 22012121039093. The reversal of 22012121039091 is 19093012121022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22012121039089) and next prime (22012121039093).

It is a cyclic number.

It is not a de Polignac number, because 22012121039091 - 2¹ = 22012121039089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012121039093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3668686839846 + ... + 3668686839851.

It is an arithmetic number, because the mean of its divisors is an integer number (7337373679698).

Almost surely, 2^{22012121039091} is an apocalyptic number.

22012121039091 is a deficient number, since it is larger than the sum of its proper divisors (7337373679701).

22012121039091 is an equidigital number, since it uses as much as digits as its factorization.

22012121039091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337373679700.

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 22012121039091 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, thirty-nine thousand, ninety-one".