2120010200021 has 8 divisors (see below), whose sum is σ = 2422887387840. Its totient is φ = 1817137659168.

The previous prime is 2120010199991. The next prime is 2120010200023. The reversal of 2120010200021 is 1200020100212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2120010200021 - 2¹⁴ = 2120010183637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120010199975 and 2120010200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120010200023) 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, 122111 + ... + 2062748.

It is an arithmetic number, because the mean of its divisors is an integer number (302860923480).

Almost surely, 2^{2120010200021} is an apocalyptic number.

It is an amenable number.

2120010200021 is a deficient number, since it is larger than the sum of its proper divisors (302877187819).

2120010200021 is a wasteful number, since it uses less digits than its factorization.

2120010200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323483.

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

Adding to 2120010200021 its reverse (1200020100212), we get a palindrome (3320030300233).

The spelling of 2120010200021 in words is "two trillion, one hundred twenty billion, ten million, two hundred thousand, twenty-one".