22220221099 has 12 divisors (see below), whose sum is σ = 23511692880. Its totient is φ = 20996488080.

The previous prime is 22220221073. The next prime is 22220221139. The reversal of 22220221099 is 99012202222.

It is not a de Polignac number, because 22220221099 - 2¹³ = 22220212907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22220221099.

It is not an unprimeable number, because it can be changed into a prime (22220221039) 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 11 ways as a sum of consecutive naturals, for example, 61314 + ... + 219544.

It is an arithmetic number, because the mean of its divisors is an integer number (1959307740).

Almost surely, 2^22220221099 is an apocalyptic number.

22220221099 is a deficient number, since it is larger than the sum of its proper divisors (1291471781).

22220221099 is a wasteful number, since it uses less digits than its factorization.

22220221099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158658 (or 158639 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 22220221099 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, ninety-nine".