2122581258 has 24 divisors (see below), whose sum is σ = 5255915808. Its totient is φ = 606451752.

The previous prime is 2122581229. The next prime is 2122581271. The reversal of 2122581258 is 8521852212.

2122581258 is a `hidden beast` number, since 2 + 1 + 22 + 581 + 2 + 58 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8422816 + ... + 8423067.

It is an arithmetic number, because the mean of its divisors is an integer number (218996492).

Almost surely, 2^2122581258 is an apocalyptic number.

2122581258 is an abundant number, since it is smaller than the sum of its proper divisors (3133334550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122581258 is a wasteful number, since it uses less digits than its factorization.

2122581258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16845898 (or 16845895 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 2122581258 is about 46071.4798763834. The cubic root of 2122581258 is about 1285.1528245114.

It can be divided in two parts, 21225812 and 58, that added together give a triangular number (21225870 = T₆₅₁₅).

The spelling of 2122581258 in words is "two billion, one hundred twenty-two million, five hundred eighty-one thousand, two hundred fifty-eight".