2122158916439 has 4 divisors (see below), whose sum is σ = 2122184385624. Its totient is φ = 2122133447256.

The previous prime is 2122158916421. The next prime is 2122158916441. The reversal of 2122158916439 is 9346198512212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122158916439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122158916499) 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, 12609197 + ... + 12776390.

It is an arithmetic number, because the mean of its divisors is an integer number (530546096406).

Almost surely, 2^{2122158916439} is an apocalyptic number.

2122158916439 is a deficient number, since it is larger than the sum of its proper divisors (25469185).

2122158916439 is an equidigital number, since it uses as much as digits as its factorization.

2122158916439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25469184.

The product of its digits is 1866240, while the sum is 53.

The spelling of 2122158916439 in words is "two trillion, one hundred twenty-two billion, one hundred fifty-eight million, nine hundred sixteen thousand, four hundred thirty-nine".