11112220120 has 16 divisors (see below), whose sum is σ = 25002495360. Its totient is φ = 4444888032.

The previous prime is 11112220117. The next prime is 11112220121. The reversal of 11112220120 is 2102221111.

It is a self number, because there is not a number n which added to its sum of digits gives 11112220120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138902712 + ... + 138902791.

It is an arithmetic number, because the mean of its divisors is an integer number (1562655960).

Almost surely, 2^11112220120 is an apocalyptic number.

11112220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112220120 is an abundant number, since it is smaller than the sum of its proper divisors (13890275240).

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

11112220120 is a wasteful number, since it uses less digits than its factorization.

11112220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277805514 (or 277805510 counting only the distinct ones).

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

Adding to 11112220120 its reverse (2102221111), we get a palindrome (13214441231).

Subtracting from 11112220120 its reverse (2102221111), we obtain a palindrome (9009999009).

The spelling of 11112220120 in words is "eleven billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty".