111202200021 has 16 divisors (see below), whose sum is σ = 165693745728. Its totient is φ = 65751484800.

The previous prime is 111202199993. The next prime is 111202200029. The reversal of 111202200021 is 120002202111.

It is not a de Polignac number, because 111202200021 - 2⁵ = 111202199989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202200029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41093326 + ... + 41096031.

It is an arithmetic number, because the mean of its divisors is an integer number (10355859108).

Almost surely, 2^111202200021 is an apocalyptic number.

111202200021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111202200021 is a deficient number, since it is larger than the sum of its proper divisors (54491545707).

111202200021 is a wasteful number, since it uses less digits than its factorization.

111202200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82189412.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111202200021 its reverse (120002202111), we get a palindrome (231204402132).

The spelling of 111202200021 in words is "one hundred eleven billion, two hundred two million, two hundred thousand, twenty-one".