2122520194 has 4 divisors (see below), whose sum is σ = 3183780294. Its totient is φ = 1061260096.

The previous prime is 2122520173. The next prime is 2122520243. The reversal of 2122520194 is 4910252212.

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

It can be written as a sum of positive squares in only one way, i.e., 1407225169 + 715295025 = 37513^2 + 26745^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530630047 + ... + 530630050.

Almost surely, 2^2122520194 is an apocalyptic number.

2122520194 is a deficient number, since it is larger than the sum of its proper divisors (1061260100).

2122520194 is a wasteful number, since it uses less digits than its factorization.

2122520194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061260099.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2122520194 is about 46070.8171622775. The cubic root of 2122520194 is about 1285.1405003151.

The spelling of 2122520194 in words is "two billion, one hundred twenty-two million, five hundred twenty thousand, one hundred ninety-four".