2110010021 has 48 divisors (see below), whose sum is σ = 2650527360. Its totient is φ = 1669731840.

The previous prime is 2110009999. The next prime is 2110010033. The reversal of 2110010021 is 1200100112.

It is not a de Polignac number, because 2110010021 - 2¹⁴ = 2109993637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2110009990 and 2110010008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110010051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9055721 + ... + 9055953.

It is an arithmetic number, because the mean of its divisors is an integer number (55219320).

Almost surely, 2^2110010021 is an apocalyptic number.

It is an amenable number.

2110010021 is a deficient number, since it is larger than the sum of its proper divisors (540517339).

2110010021 is a wasteful number, since it uses less digits than its factorization.

2110010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2110010021 is about 45934.8453899651. The cubic root of 2110010021 is about 1282.6106428742.

Adding to 2110010021 its reverse (1200100112), we get a palindrome (3310110133).

Subtracting from 2110010021 its reverse (1200100112), we obtain a palindrome (909909909).

The spelling of 2110010021 in words is "two billion, one hundred ten million, ten thousand, twenty-one".