2122351844 has 12 divisors (see below), whose sum is σ = 3721745664. Its totient is φ = 1058995944.

The previous prime is 2122351837. The next prime is 2122351871. The reversal of 2122351844 is 4481532212.

It is a self number, because there is not a number n which added to its sum of digits gives 2122351844.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542804 + ... + 546699.

It is an arithmetic number, because the mean of its divisors is an integer number (310145472).

Almost surely, 2^2122351844 is an apocalyptic number.

It is an amenable number.

2122351844 is a deficient number, since it is larger than the sum of its proper divisors (1599393820).

2122351844 is a wasteful number, since it uses less digits than its factorization.

2122351844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089994 (or 1089992 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 2122351844 is about 46068.9900475363. The cubic root of 2122351844 is about 1285.1065219774.

The spelling of 2122351844 in words is "two billion, one hundred twenty-two million, three hundred fifty-one thousand, eight hundred forty-four".