111220201222120 has 32 divisors (see below), whose sum is σ = 258317886712320. Its totient is φ = 43052981117760.

The previous prime is 111220201222079. The next prime is 111220201222139. The reversal of 111220201222120 is 21222102022111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44846854092 + ... + 44846856571.

It is an arithmetic number, because the mean of its divisors is an integer number (8072433959760).

Almost surely, 2^{111220201222120} is an apocalyptic number.

111220201222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220201222120 is an abundant number, since it is smaller than the sum of its proper divisors (147097685490200).

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

111220201222120 is a wasteful number, since it uses less digits than its factorization.

111220201222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89693710705 (or 89693710701 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111220201222120 its reverse (21222102022111), we get a palindrome (132442303244231).

The spelling of 111220201222120 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred one million, two hundred twenty-two thousand, one hundred twenty".