22221120999 has 32 divisors (see below), whose sum is σ = 37304778240. Its totient is φ = 11429136000.

The previous prime is 22221120983. The next prime is 22221121033. The reversal of 22221120999 is 99902112222.

It is not a de Polignac number, because 22221120999 - 2⁴ = 22221120983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221120959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452884 + ... + 499545.

It is an arithmetic number, because the mean of its divisors is an integer number (1165774320).

Almost surely, 2^22221120999 is an apocalyptic number.

22221120999 is a deficient number, since it is larger than the sum of its proper divisors (15083657241).

22221120999 is a wasteful number, since it uses less digits than its factorization.

22221120999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952551.

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 22221120999 in words is "twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, nine hundred ninety-nine".