111202200020 has 24 divisors (see below), whose sum is σ = 233688327264. Its totient is φ = 44449697696.

The previous prime is 111202199993. The next prime is 111202200029. The reversal of 111202200020 is 20002202111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111202199974 and 111202200010.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1919642 + ... + 1976721.

It is an arithmetic number, because the mean of its divisors is an integer number (9737013636).

Almost surely, 2^111202200020 is an apocalyptic number.

111202200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111202200020 is an abundant number, since it is smaller than the sum of its proper divisors (122486127244).

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

111202200020 is a wasteful number, since it uses less digits than its factorization.

111202200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897799 (or 3897797 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 111202200020 its reverse (20002202111), we get a palindrome (131204402131).

The spelling of 111202200020 in words is "one hundred eleven billion, two hundred two million, two hundred thousand, twenty".