100202220121 has 8 divisors (see below), whose sum is σ = 105635604800. Its totient is φ = 94784793840.

The previous prime is 100202220119. The next prime is 100202220191. The reversal of 100202220121 is 121022202001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100202220121 - 2¹ = 100202220119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100202220191) 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, 3976701 + ... + 4001818.

It is an arithmetic number, because the mean of its divisors is an integer number (13204450600).

Almost surely, 2^100202220121 is an apocalyptic number.

It is an amenable number.

100202220121 is a deficient number, since it is larger than the sum of its proper divisors (5433384679).

100202220121 is an equidigital number, since it uses as much as digits as its factorization.

100202220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7979199.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100202220121 its reverse (121022202001), we get a palindrome (221224422122).

The spelling of 100202220121 in words is "one hundred billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".