22033002221 has 4 divisors (see below), whose sum is σ = 22035195744. Its totient is φ = 22030808700.

The previous prime is 22033002209. The next prime is 22033002223. The reversal of 22033002221 is 12220033022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22033002221 - 2¹⁴ = 22032985837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22033002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22033002223) 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, 1081625 + ... + 1101806.

It is an arithmetic number, because the mean of its divisors is an integer number (5508798936).

Almost surely, 2^22033002221 is an apocalyptic number.

It is an amenable number.

22033002221 is a deficient number, since it is larger than the sum of its proper divisors (2193523).

22033002221 is a wasteful number, since it uses less digits than its factorization.

22033002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193522.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22033002221 its reverse (12220033022), we get a palindrome (34253035243).

The spelling of 22033002221 in words is "twenty-two billion, thirty-three million, two thousand, two hundred twenty-one".