100221122099 has 4 divisors (see below), whose sum is σ = 114538425264. Its totient is φ = 85903818936.

The previous prime is 100221122087. The next prime is 100221122101. The reversal of 100221122099 is 990221122001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990221122001 = 463 ⋅2138706527.

It is a cyclic number.

It is not a de Polignac number, because 100221122099 - 2⁴ = 100221122083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100221122699) 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, 7158651572 + ... + 7158651585.

It is an arithmetic number, because the mean of its divisors is an integer number (28634606316).

Almost surely, 2^100221122099 is an apocalyptic number.

100221122099 is a deficient number, since it is larger than the sum of its proper divisors (14317303165).

100221122099 is an equidigital number, since it uses as much as digits as its factorization.

100221122099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14317303164.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 100221122099 in words is "one hundred billion, two hundred twenty-one million, one hundred twenty-two thousand, ninety-nine".