111221220212200 has 48 divisors (see below), whose sum is σ = 295530670853280. Its totient is φ = 38132989786560.

The previous prime is 111221220212173. The next prime is 111221220212203. The reversal of 111221220212200 is 2212022122111.

It is not an unprimeable number, because it can be changed into a prime (111221220212203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39721862962 + ... + 39721865761.

It is an arithmetic number, because the mean of its divisors is an integer number (6156888976110).

Almost surely, 2^{111221220212200} is an apocalyptic number.

111221220212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111221220212200 is an abundant number, since it is smaller than the sum of its proper divisors (184309450641080).

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

111221220212200 is a wasteful number, since it uses less digits than its factorization.

111221220212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79443728746 (or 79443728737 counting only the distinct ones).

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

Adding to 111221220212200 its reverse (2212022122111), we get a palindrome (113433242334311).

The spelling of 111221220212200 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twelve thousand, two hundred".