2021012001200 has 30 divisors (see below), whose sum is σ = 4855481333844. Its totient is φ = 808404800320.

The previous prime is 2021012001193. The next prime is 2021012001221. The reversal of 2021012001200 is 21002101202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2526264602 + ... + 2526265401.

Almost surely, 2^{2021012001200} is an apocalyptic number.

2021012001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021012001200 is an abundant number, since it is smaller than the sum of its proper divisors (2834469332644).

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

2021012001200 is a wasteful number, since it uses less digits than its factorization.

2021012001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052530021 (or 5052530010 counting only the distinct ones).

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

Adding to 2021012001200 its reverse (21002101202), we get a palindrome (2042014102402).

The spelling of 2021012001200 in words is "two trillion, twenty-one billion, twelve million, one thousand, two hundred".