201002210101021 has 8 divisors (see below), whose sum is σ = 234404909739200. Its totient is φ = 172287608657724.

The previous prime is 201002210100929. The next prime is 201002210101057. The reversal of 201002210101021 is 120101012200102.

It is a de Polignac number, because none of the positive numbers 2^k-201002210101021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201002210100992 and 201002210101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002213101021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293006136831 + ... + 293006137516.

It is an arithmetic number, because the mean of its divisors is an integer number (29300613717400).

Almost surely, 2^{201002210101021} is an apocalyptic number.

It is an amenable number.

201002210101021 is a deficient number, since it is larger than the sum of its proper divisors (33402699638179).

201002210101021 is an frugal number, since it uses more digits than its factorization.

201002210101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586012274368 (or 586012274354 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201002210101021 its reverse (120101012200102), we get a palindrome (321103222301123).

The spelling of 201002210101021 in words is "two hundred one trillion, two billion, two hundred ten million, one hundred one thousand, twenty-one".