2110002002021 has 4 divisors (see below), whose sum is σ = 2110244011200. Its totient is φ = 2109759992844.

The previous prime is 2110002001951. The next prime is 2110002002033. The reversal of 2110002002021 is 1202002000112.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110002002021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110002001993 and 2110002002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110002007021) 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, 120991511 + ... + 121008948.

It is an arithmetic number, because the mean of its divisors is an integer number (527561002800).

Almost surely, 2^{2110002002021} is an apocalyptic number.

It is an amenable number.

2110002002021 is a deficient number, since it is larger than the sum of its proper divisors (242009179).

2110002002021 is an equidigital number, since it uses as much as digits as its factorization.

2110002002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242009178.

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

Adding to 2110002002021 its reverse (1202002000112), we get a palindrome (3312004002133).

The spelling of 2110002002021 in words is "two trillion, one hundred ten billion, two million, two thousand, twenty-one".