22303021999 has 4 divisors (see below), whose sum is σ = 22315893336. Its totient is φ = 22290150664.

The previous prime is 22303021987. The next prime is 22303022003. The reversal of 22303021999 is 99912030322.

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 22303021999 - 2⁹ = 22303021487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22303021919) 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, 6433069 + ... + 6436534.

It is an arithmetic number, because the mean of its divisors is an integer number (5578973334).

Almost surely, 2^22303021999 is an apocalyptic number.

22303021999 is a deficient number, since it is larger than the sum of its proper divisors (12871337).

22303021999 is a wasteful number, since it uses less digits than its factorization.

22303021999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871336.

The product of its (nonzero) digits is 52488, while the sum is 40.

The spelling of 22303021999 in words is "twenty-two billion, three hundred three million, twenty-one thousand, nine hundred ninety-nine".