2200010021 has 24 divisors (see below), whose sum is σ = 2487512832. Its totient is φ = 1943092800.

The previous prime is 2200010011. The next prime is 2200010023. The reversal of 2200010021 is 1200100022.

It is not a de Polignac number, because 2200010021 - 2¹⁴ = 2199993637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200009990 and 2200010008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200010023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1403180 + ... + 1404746.

It is an arithmetic number, because the mean of its divisors is an integer number (103646368).

Almost surely, 2^2200010021 is an apocalyptic number.

It is an amenable number.

2200010021 is a deficient number, since it is larger than the sum of its proper divisors (287502811).

2200010021 is a wasteful number, since it uses less digits than its factorization.

2200010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 1902 counting only the distinct ones).

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

The square root of 2200010021 is about 46904.2644223316. The cubic root of 2200010021 is about 1300.5934215797.

Adding to 2200010021 its reverse (1200100022), we get a palindrome (3400110043).

Subtracting from 2200010021 its reverse (1200100022), we obtain a palindrome (999909999).

The spelling of 2200010021 in words is "two billion, two hundred million, ten thousand, twenty-one".