2120200200021 has 8 divisors (see below), whose sum is σ = 2827138401664. Its totient is φ = 1413364399200.

The previous prime is 2120200199989. The next prime is 2120200200023. The reversal of 2120200200021 is 1200020020212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120200200021 - 2⁵ = 2120200199989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120200200023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25551880 + ... + 25634721.

It is an arithmetic number, because the mean of its divisors is an integer number (353392300208).

Almost surely, 2^{2120200200021} is an apocalyptic number.

It is an amenable number.

2120200200021 is a deficient number, since it is larger than the sum of its proper divisors (706938201643).

2120200200021 is a wasteful number, since it uses less digits than its factorization.

2120200200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51200411.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2120200200021 its reverse (1200020020212), we get a palindrome (3320220220233).

The spelling of 2120200200021 in words is "two trillion, one hundred twenty billion, two hundred million, two hundred thousand, twenty-one".