2110200012021 has 4 divisors (see below), whose sum is σ = 2813600016032. Its totient is φ = 1406800008012.

The previous prime is 2110200012001. The next prime is 2110200012043. The reversal of 2110200012021 is 1202100020112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2110200012021 - 2⁹ = 2110200011509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110200011988 and 2110200012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110200012001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351700002001 + ... + 351700002006.

It is an arithmetic number, because the mean of its divisors is an integer number (703400004008).

Almost surely, 2^{2110200012021} is an apocalyptic number.

It is an amenable number.

2110200012021 is a deficient number, since it is larger than the sum of its proper divisors (703400004011).

2110200012021 is an equidigital number, since it uses as much as digits as its factorization.

2110200012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703400004010.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2110200012021 its reverse (1202100020112), we get a palindrome (3312300032133).

The spelling of 2110200012021 in words is "two trillion, one hundred ten billion, two hundred million, twelve thousand, twenty-one".