111220113000 has 128 divisors (see below), whose sum is σ = 356385669120. Its totient is φ = 28857081600.

The previous prime is 111220112989. The next prime is 111220113023. The reversal of 111220113000 is 311022111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389992 + ... + 611991.

It is an arithmetic number, because the mean of its divisors is an integer number (2784263040).

Almost surely, 2^111220113000 is an apocalyptic number.

111220113000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220113000 is an abundant number, since it is smaller than the sum of its proper divisors (245165556120).

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

111220113000 is a wasteful number, since it uses less digits than its factorization.

111220113000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002044 (or 1002030 counting only the distinct ones).

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

Adding to 111220113000 its reverse (311022111), we get a palindrome (111531135111).

The spelling of 111220113000 in words is "one hundred eleven billion, two hundred twenty million, one hundred thirteen thousand".