2122751555523 has 12 divisors (see below), whose sum is σ = 3069147808480. Its totient is φ = 1413805649616.

The previous prime is 2122751555521. The next prime is 2122751555593. The reversal of 2122751555523 is 3255551572212.

2122751555523 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 75 + 1 + 5 + 55 + 523 = 666.

It is not a de Polignac number, because 2122751555523 - 2¹ = 2122751555521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122751555521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113494636 + ... + 113513337.

Almost surely, 2^{2122751555523} is an apocalyptic number.

2122751555523 is a deficient number, since it is larger than the sum of its proper divisors (946396252957).

2122751555523 is a wasteful number, since it uses less digits than its factorization.

2122751555523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227009018 (or 227009015 counting only the distinct ones).

The product of its digits is 1050000, while the sum is 45.

The spelling of 2122751555523 in words is "two trillion, one hundred twenty-two billion, seven hundred fifty-one million, five hundred fifty-five thousand, five hundred twenty-three".