100202010010121 has 4 divisors (see below), whose sum is σ = 101088753461652. Its totient is φ = 99315266558592.

The previous prime is 100202010010061. The next prime is 100202010010129. The reversal of 100202010010121 is 121010010202001.

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 3751442154496 + 96450567855625 = 1936864^2 + 9820925^2 .

It is a cyclic number.

It is not a de Polignac number, because 100202010010121 - 2²⁶ = 100201942901257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100202010010129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443371725596 + ... + 443371725821.

It is an arithmetic number, because the mean of its divisors is an integer number (25272188365413).

Almost surely, 2^{100202010010121} is an apocalyptic number.

It is an amenable number.

100202010010121 is a deficient number, since it is larger than the sum of its proper divisors (886743451531).

100202010010121 is an equidigital number, since it uses as much as digits as its factorization.

100202010010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886743451530.

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

Adding to 100202010010121 its reverse (121010010202001), we get a palindrome (221212020212122).

The spelling of 100202010010121 in words is "one hundred trillion, two hundred two billion, ten million, ten thousand, one hundred twenty-one".