111022220212220 has 24 divisors (see below), whose sum is σ = 235550236289424. Its totient is φ = 43951064495616.

The previous prime is 111022220212217. The next prime is 111022220212229. The reversal of 111022220212220 is 22212022220111.

It is a super-2 number, since 2×111022220212220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111022220212192 and 111022220212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022220212229) 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, 28613972342 + ... + 28613976221.

It is an arithmetic number, because the mean of its divisors is an integer number (9814593178726).

Almost surely, 2^{111022220212220} is an apocalyptic number.

111022220212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022220212220 is an abundant number, since it is smaller than the sum of its proper divisors (124528016077204).

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

111022220212220 is a wasteful number, since it uses less digits than its factorization.

111022220212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57227948669 (or 57227948667 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111022220212220 its reverse (22212022220111), we get a palindrome (133234242432331).

The spelling of 111022220212220 in words is "one hundred eleven trillion, twenty-two billion, two hundred twenty million, two hundred twelve thousand, two hundred twenty".