11122861251 has 8 divisors (see below), whose sum is σ = 14874490384. Its totient is φ = 7393236480.

The previous prime is 11122861237. The next prime is 11122861261. The reversal of 11122861251 is 15216822111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11122861251 - 2⁵ = 11122861219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122861261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5499910 + ... + 5501931.

It is an arithmetic number, because the mean of its divisors is an integer number (1859311298).

Almost surely, 2^11122861251 is an apocalyptic number.

11122861251 is a deficient number, since it is larger than the sum of its proper divisors (3751629133).

11122861251 is a wasteful number, since it uses less digits than its factorization.

11122861251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002181.

The product of its digits is 1920, while the sum is 30.

The spelling of 11122861251 in words is "eleven billion, one hundred twenty-two million, eight hundred sixty-one thousand, two hundred fifty-one".