112020202000021 has 12 divisors (see below), whose sum is σ = 133487488099980. Its totient is φ = 93675430242240.

The previous prime is 112020201999971. The next prime is 112020202000051. The reversal of 112020202000021 is 120000202020211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 56774265916900 + 55245936083121 = 7534870^2 + 7432761^2 .

It is not a de Polignac number, because 112020202000021 - 2⁹ = 112020201999509 is a prime.

It is a super-2 number, since 2×112020202000021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112020201999965 and 112020202000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112020202000051) 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, 27879590326 + ... + 27879594343.

It is an arithmetic number, because the mean of its divisors is an integer number (11123957341665).

Almost surely, 2^{112020202000021} is an apocalyptic number.

It is an amenable number.

112020202000021 is a deficient number, since it is larger than the sum of its proper divisors (21467286099959).

112020202000021 is an equidigital number, since it uses as much as digits as its factorization.

112020202000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55759184724 (or 55759184717 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 112020202000021 its reverse (120000202020211), we get a palindrome (232020404020232).

The spelling of 112020202000021 in words is "one hundred twelve trillion, twenty billion, two hundred two million, twenty-one", and thus it is an aban number.