10202002002021 has 16 divisors (see below), whose sum is σ = 13799491573824. Its totient is φ = 6703568868864.

The previous prime is 10202002002013. The next prime is 10202002002041. The reversal of 10202002002021 is 12020020020201.

It is not a de Polignac number, because 10202002002021 - 2³ = 10202002002013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10202002001988 and 10202002002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202002002041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80601580 + ... + 80728053.

It is an arithmetic number, because the mean of its divisors is an integer number (862468223364).

Almost surely, 2^{10202002002021} is an apocalyptic number.

It is an amenable number.

10202002002021 is a deficient number, since it is larger than the sum of its proper divisors (3597489571803).

10202002002021 is a wasteful number, since it uses less digits than its factorization.

10202002002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161329940.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10202002002021 its reverse (12020020020201), we get a palindrome (22222022022222).

The spelling of 10202002002021 in words is "ten trillion, two hundred two billion, two million, two thousand, twenty-one".