2256130221051 has 48 divisors (see below), whose sum is σ = 3514576756608. Its totient is φ = 1283597884800.

The previous prime is 2256130221001. The next prime is 2256130221071. The reversal of 2256130221051 is 1501220316522.

It is not a de Polignac number, because 2256130221051 - 2³⁹ = 1706374407163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2256130221001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52975596 + ... + 53018166.

It is an arithmetic number, because the mean of its divisors is an integer number (73220349096).

Almost surely, 2^{2256130221051} is an apocalyptic number.

2256130221051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2256130221051 is a deficient number, since it is larger than the sum of its proper divisors (1258446535557).

2256130221051 is a wasteful number, since it uses less digits than its factorization.

2256130221051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44152 (or 44145 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 2256130221051 its reverse (1501220316522), we get a palindrome (3757350537573).

The spelling of 2256130221051 in words is "two trillion, two hundred fifty-six billion, one hundred thirty million, two hundred twenty-one thousand, fifty-one".