2552322042121 has 24 divisors (see below), whose sum is σ = 2860261588584. Its totient is φ = 2269305815040.

The previous prime is 2552322042113. The next prime is 2552322042157. The reversal of 2552322042121 is 1212402232552.

It can be written as a sum of positive squares in 4 ways, for example, as 487712276496 + 2064609765625 = 698364^2 + 1436875^2 .

It is not a de Polignac number, because 2552322042121 - 2³ = 2552322042113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2552322042191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1577281 + ... + 2755441.

It is an arithmetic number, because the mean of its divisors is an integer number (119177566191).

Almost surely, 2^{2552322042121} is an apocalyptic number.

It is an amenable number.

2552322042121 is a deficient number, since it is larger than the sum of its proper divisors (307939546463).

2552322042121 is a wasteful number, since it uses less digits than its factorization.

2552322042121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178569 (or 1178550 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 2552322042121 its reverse (1212402232552), we get a palindrome (3764724274673).

The spelling of 2552322042121 in words is "two trillion, five hundred fifty-two billion, three hundred twenty-two million, forty-two thousand, one hundred twenty-one".