11111122110 has 64 divisors (see below), whose sum is σ = 29379055104. Its totient is φ = 2666928000.

The previous prime is 11111122109. The next prime is 11111122117. The reversal of 11111122110 is 1122111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111122117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133354 + ... + 200013.

It is an arithmetic number, because the mean of its divisors is an integer number (459047736).

Almost surely, 2^11111122110 is an apocalyptic number.

11111122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111122110 is an abundant number, since it is smaller than the sum of its proper divisors (18267932994).

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

11111122110 is a wasteful number, since it uses less digits than its factorization.

11111122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333489.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11111122110 its reverse (1122111111), we get a palindrome (12233233221).

The spelling of 11111122110 in words is "eleven billion, one hundred eleven million, one hundred twenty-two thousand, one hundred ten".