20212122000100 has 36 divisors (see below), whose sum is σ = 43860620606068. Its totient is φ = 8084790576000.

The previous prime is 20212122000011. The next prime is 20212122000131. The reversal of 20212122000100 is 100022121202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 911845468836 + 19300276531264 = 954906^2 + 4393208^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14896030 + ... + 16196170.

Almost surely, 2^{20212122000100} is an apocalyptic number.

20212122000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212122000100 is an abundant number, since it is smaller than the sum of its proper divisors (23648498605968).

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

20212122000100 is a wasteful number, since it uses less digits than its factorization.

20212122000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455616 (or 1455609 counting only the distinct ones).

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

Adding to 20212122000100 its reverse (100022121202), we get a palindrome (20312144121302).

The spelling of 20212122000100 in words is "twenty trillion, two hundred twelve billion, one hundred twenty-two million, one hundred", and thus it is an aban number.