111220101200 has 120 divisors (see below), whose sum is σ = 297043654656. Its totient is φ = 39741120000.

The previous prime is 111220101193. The next prime is 111220101217. The reversal of 111220101200 is 2101022111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183776 + ... + 506175.

Almost surely, 2^111220101200 is an apocalyptic number.

111220101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220101200 is an abundant number, since it is smaller than the sum of its proper divisors (185823553456).

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

111220101200 is a wasteful number, since it uses less digits than its factorization.

111220101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690013 (or 690002 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111220101200 its reverse (2101022111), we get a palindrome (113321123311).

The spelling of 111220101200 in words is "one hundred eleven billion, two hundred twenty million, one hundred one thousand, two hundred".