100220110121 has 4 divisors (see below), whose sum is σ = 100230242244. Its totient is φ = 100209978000.

The previous prime is 100220110097. The next prime is 100220110127. The reversal of 100220110121 is 121011022001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121011022001 = 9901 ⋅12222101.

It can be written as a sum of positive squares in 2 ways, for example, as 81231270121 + 18988840000 = 285011^2 + 137800^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220110121 - 2³⁴ = 83040240937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100220110127) 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, 5051210 + ... + 5071011.

It is an arithmetic number, because the mean of its divisors is an integer number (25057560561).

Almost surely, 2^100220110121 is an apocalyptic number.

It is an amenable number.

100220110121 is a deficient number, since it is larger than the sum of its proper divisors (10132123).

100220110121 is an equidigital number, since it uses as much as digits as its factorization.

100220110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132122.

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

Adding to 100220110121 its reverse (121011022001), we get a palindrome (221231132122).

The spelling of 100220110121 in words is "one hundred billion, two hundred twenty million, one hundred ten thousand, one hundred twenty-one".