22221003999 has 16 divisors (see below), whose sum is σ = 29757508704. Its totient is φ = 14749363200.

The previous prime is 22221003997. The next prime is 22221004027. The reversal of 22221003999 is 99930012222.

It is not a de Polignac number, because 22221003999 - 2¹ = 22221003997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221003991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813829 + ... + 840689.

It is an arithmetic number, because the mean of its divisors is an integer number (1859844294).

Almost surely, 2^22221003999 is an apocalyptic number.

22221003999 is a deficient number, since it is larger than the sum of its proper divisors (7536504705).

22221003999 is a wasteful number, since it uses less digits than its factorization.

22221003999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28058.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 22221003999 in words is "twenty-two billion, two hundred twenty-one million, three thousand, nine hundred ninety-nine".