11122221110 has 128 divisors (see below), whose sum is σ = 26998272000. Its totient is φ = 3185925120.

The previous prime is 11122221109. The next prime is 11122221133. The reversal of 11122221110 is 1112222111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2390066 + ... + 2394714.

It is an arithmetic number, because the mean of its divisors is an integer number (210924000).

Almost surely, 2^11122221110 is an apocalyptic number.

11122221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11122221110 is an abundant number, since it is smaller than the sum of its proper divisors (15876050890).

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

11122221110 is a wasteful number, since it uses less digits than its factorization.

11122221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11122221110 its reverse (1112222111), we get a palindrome (12234443221).

It can be divided in two parts, 11122 and 221110, that added together give a palindrome (232232).

The spelling of 11122221110 in words is "eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred ten".