111102222100220 has 24 divisors (see below), whose sum is σ = 251261948442624. Its totient is φ = 41022358929216.

The previous prime is 111102222100217. The next prime is 111102222100229. The reversal of 111102222100220 is 22001222201111.

It is a super-2 number, since 2×111102222100220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102222100229) 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, 213658119164 + ... + 213658119683.

It is an arithmetic number, because the mean of its divisors is an integer number (10469247851776).

Almost surely, 2^{111102222100220} is an apocalyptic number.

111102222100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102222100220 is an abundant number, since it is smaller than the sum of its proper divisors (140159726342404).

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

111102222100220 is a wasteful number, since it uses less digits than its factorization.

111102222100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427316238869 (or 427316238867 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111102222100220 its reverse (22001222201111), we get a palindrome (133103444301331).

The spelling of 111102222100220 in words is "one hundred eleven trillion, one hundred two billion, two hundred twenty-two million, one hundred thousand, two hundred twenty".