202110102101 has 4 divisors (see below), whose sum is σ = 202112537772. Its totient is φ = 202107666432.

The previous prime is 202110102097. The next prime is 202110102107. The reversal of 202110102101 is 101201011202.

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 61627566001 + 140482536100 = 248249^2 + 374810^2 .

It is a cyclic number.

It is not a de Polignac number, because 202110102101 - 2² = 202110102097 is a prime.

It is a super-2 number, since 2×202110102101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202110102107) 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, 1088810 + ... + 1260843.

It is an arithmetic number, because the mean of its divisors is an integer number (50528134443).

Almost surely, 2^202110102101 is an apocalyptic number.

It is an amenable number.

202110102101 is a deficient number, since it is larger than the sum of its proper divisors (2435671).

202110102101 is an equidigital number, since it uses as much as digits as its factorization.

202110102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435670.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 202110102101 its reverse (101201011202), we get a palindrome (303311113303).

The spelling of 202110102101 in words is "two hundred two billion, one hundred ten million, one hundred two thousand, one hundred one".