2010000220021 has 4 divisors (see below), whose sum is σ = 2010064920844. Its totient is φ = 2009935519200.

The previous prime is 2010000219991. The next prime is 2010000220049. The reversal of 2010000220021 is 1200220000102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 462685644100 + 1547314575921 = 680210^2 + 1243911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010000220021 - 2³³ = 2001410285429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010000220121) 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, 32303790 + ... + 32365951.

It is an arithmetic number, because the mean of its divisors is an integer number (502516230211).

Almost surely, 2^{2010000220021} is an apocalyptic number.

It is an amenable number.

2010000220021 is a deficient number, since it is larger than the sum of its proper divisors (64700823).

2010000220021 is an equidigital number, since it uses as much as digits as its factorization.

2010000220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64700822.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2010000220021 its reverse (1200220000102), we get a palindrome (3210220220123).

The spelling of 2010000220021 in words is "two trillion, ten billion, two hundred twenty thousand, twenty-one".