202110000100101 has 10 divisors (see below), whose sum is σ = 301917407557062. Its totient is φ = 134740000066680.

The previous prime is 202110000100051. The next prime is 202110000100103. The reversal of 202110000100101 is 101001000011202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 170387309456001 + 31722690644100 = 13053249^2 + 5632290^2 .

It is not a de Polignac number, because 202110000100101 - 2⁶ = 202110000100037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202110000100103) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1247592593130 + ... + 1247592593291.

Almost surely, 2^{202110000100101} is an apocalyptic number.

It is an amenable number.

202110000100101 is a deficient number, since it is larger than the sum of its proper divisors (99807407456961).

202110000100101 is an equidigital number, since it uses as much as digits as its factorization.

202110000100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495185186433 (or 2495185186424 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 202110000100101 its reverse (101001000011202), we get a palindrome (303111000111303).

The spelling of 202110000100101 in words is "two hundred two trillion, one hundred ten billion, one hundred thousand, one hundred one".