2021122001200 has 60 divisors (see below), whose sum is σ = 4917210819040. Its totient is φ = 798215258880.

The previous prime is 2021122001137. The next prime is 2021122001201. The reversal of 2021122001200 is 21002211202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2021122001201) 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, 31948179 + ... + 32011378.

Almost surely, 2^{2021122001200} is an apocalyptic number.

2021122001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021122001200 is an abundant number, since it is smaller than the sum of its proper divisors (2896088817840).

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

2021122001200 is a wasteful number, since it uses less digits than its factorization.

2021122001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63959654 (or 63959643 counting only the distinct ones).

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

Adding to 2021122001200 its reverse (21002211202), we get a palindrome (2042124212402).

The spelling of 2021122001200 in words is "two trillion, twenty-one billion, one hundred twenty-two million, one thousand, two hundred".