11122211958 has 32 divisors (see below), whose sum is σ = 26133311232. Its totient is φ = 3111108000.

The previous prime is 11122211957. The next prime is 11122211977. The reversal of 11122211958 is 85911222111.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122211957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6480618 + ... + 6482333.

It is an arithmetic number, because the mean of its divisors is an integer number (816665976).

Almost surely, 2^11122211958 is an apocalyptic number.

11122211958 is an abundant number, since it is smaller than the sum of its proper divisors (15011099274).

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

11122211958 is a wasteful number, since it uses less digits than its factorization.

11122211958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12962980.

The product of its digits is 2880, while the sum is 33.

The spelling of 11122211958 in words is "eleven billion, one hundred twenty-two million, two hundred eleven thousand, nine hundred fifty-eight".