22221222099 has 4 divisors (see below), whose sum is σ = 29628296136. Its totient is φ = 14814148064.

The previous prime is 22221222083. The next prime is 22221222103. The reversal of 22221222099 is 99022212222.

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

It is a cyclic number.

It is not a de Polignac number, because 22221222099 - 2⁴ = 22221222083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221222899) 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, 3703537014 + ... + 3703537019.

It is an arithmetic number, because the mean of its divisors is an integer number (7407074034).

Almost surely, 2^22221222099 is an apocalyptic number.

22221222099 is a deficient number, since it is larger than the sum of its proper divisors (7407074037).

22221222099 is an equidigital number, since it uses as much as digits as its factorization.

22221222099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407074036.

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 22221222099 in words is "twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, ninety-nine".