11122211020 has 24 divisors (see below), whose sum is σ = 23380253568. Its totient is φ = 4444387200.

The previous prime is 11122211011. The next prime is 11122211041. The reversal of 11122211020 is 2011222111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260761 + ... + 300400.

It is an arithmetic number, because the mean of its divisors is an integer number (974177232).

Almost surely, 2^11122211020 is an apocalyptic number.

11122211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122211020 is an abundant number, since it is smaller than the sum of its proper divisors (12258042548).

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

11122211020 is a wasteful number, since it uses less digits than its factorization.

11122211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562161 (or 562159 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11122211020 its reverse (2011222111), we get a palindrome (13133433131).

The spelling of 11122211020 in words is "eleven billion, one hundred twenty-two million, two hundred eleven thousand, twenty".