2002121121200 has 60 divisors (see below), whose sum is σ = 5019230625168. Its totient is φ = 766028947200.

The previous prime is 2002121121199. The next prime is 2002121121211. The reversal of 2002121121200 is 21211212002.

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, 108801731 + ... + 108820130.

Almost surely, 2^{2002121121200} is an apocalyptic number.

2002121121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002121121200 is an abundant number, since it is smaller than the sum of its proper divisors (3017109503968).

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

2002121121200 is a wasteful number, since it uses less digits than its factorization.

2002121121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217621902 (or 217621891 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2002121121200 its reverse (21211212002), we get a palindrome (2023332333202).

The spelling of 2002121121200 in words is "two trillion, two billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred".