202120102110001 has 16 divisors (see below), whose sum is σ = 209287839241728. Its totient is φ = 194993007148800.

The previous prime is 202120102109993. The next prime is 202120102110011. The reversal of 202120102110001 is 100011201021202.

It is not a de Polignac number, because 202120102110001 - 2³ = 202120102109993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120102110011) 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, 75267411 + ... + 77906503.

It is an arithmetic number, because the mean of its divisors is an integer number (13080489952608).

Almost surely, 2^{202120102110001} is an apocalyptic number.

It is an amenable number.

202120102110001 is a deficient number, since it is larger than the sum of its proper divisors (7167737131727).

202120102110001 is a wasteful number, since it uses less digits than its factorization.

202120102110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646792.

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

Adding to 202120102110001 its reverse (100011201021202), we get a palindrome (302131303131203).

The spelling of 202120102110001 in words is "two hundred two trillion, one hundred twenty billion, one hundred two million, one hundred ten thousand, one".