111001112022220 has 72 divisors (see below), whose sum is σ = 275605103113200. Its totient is φ = 37433630263680.

The previous prime is 111001112022197. The next prime is 111001112022263. The reversal of 111001112022220 is 22220211100111.

It is a junction number, because it is equal to n+sod(n) for n = 111001112022194 and 111001112022203.

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, 928353670 + ... + 928473229.

It is an arithmetic number, because the mean of its divisors is an integer number (3827848654350).

Almost surely, 2^{111001112022220} is an apocalyptic number.

111001112022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001112022220 is an abundant number, since it is smaller than the sum of its proper divisors (164603991090980).

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

111001112022220 is a wasteful number, since it uses less digits than its factorization.

111001112022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856826983 (or 1856826974 counting only the distinct ones).

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

Adding to 111001112022220 its reverse (22220211100111), we get a palindrome (133221323122331).

The spelling of 111001112022220 in words is "one hundred eleven trillion, one billion, one hundred twelve million, twenty-two thousand, two hundred twenty".