11112411220 has 24 divisors (see below), whose sum is σ = 23905237608. Its totient is φ = 4336550400.

The previous prime is 11112411157. The next prime is 11112411229. The reversal of 11112411220 is 2211421111.

It can be written as a sum of positive squares in 4 ways, for example, as 46212804 + 11066198416 = 6798^2 + 105196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11112411194 and 11112411203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112411229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6775041 + ... + 6776680.

It is an arithmetic number, because the mean of its divisors is an integer number (996051567).

Almost surely, 2^11112411220 is an apocalyptic number.

11112411220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112411220 is an abundant number, since it is smaller than the sum of its proper divisors (12792826388).

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

11112411220 is a wasteful number, since it uses less digits than its factorization.

11112411220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13551771 (or 13551769 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11112411220 its reverse (2211421111), we get a palindrome (13323832331).

The spelling of 11112411220 in words is "eleven billion, one hundred twelve million, four hundred eleven thousand, two hundred twenty".