221102121122099 has 4 divisors (see below), whose sum is σ = 252688138425264. Its totient is φ = 189516103818936.

The previous prime is 221102121122041. The next prime is 221102121122117. The reversal of 221102121122099 is 990221121201122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221102121122099 is a prime.

It is a super-2 number, since 2×221102121122099² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221102121122009) 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, 15793008651572 + ... + 15793008651585.

It is an arithmetic number, because the mean of its divisors is an integer number (63172034606316).

Almost surely, 2^{221102121122099} is an apocalyptic number.

221102121122099 is a deficient number, since it is larger than the sum of its proper divisors (31586017303165).

221102121122099 is an equidigital number, since it uses as much as digits as its factorization.

221102121122099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31586017303164.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 221102121122099 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred twenty-one million, one hundred twenty-two thousand, ninety-nine".