111221010012200 has 384 divisors, whose sum is σ = 296589276000000. Its totient is φ = 38416212172800.

The previous prime is 111221010012181. The next prime is 111221010012223. The reversal of 111221010012200 is 2210010122111.

It is a super-2 number, since 2×111221010012200² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1129912586 + ... + 1130011014.

It is an arithmetic number, because the mean of its divisors is an integer number (772367906250).

Almost surely, 2^{111221010012200} is an apocalyptic number.

111221010012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111221010012200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148294638000000).

111221010012200 is an abundant number, since it is smaller than the sum of its proper divisors (185368265987800).

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

111221010012200 is a wasteful number, since it uses less digits than its factorization.

111221010012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98773 (or 98764 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111221010012200 its reverse (2210010122111), we get a palindrome (113431020134311).

The spelling of 111221010012200 in words is "one hundred eleven trillion, two hundred twenty-one billion, ten million, twelve thousand, two hundred".