22224022021 has 8 divisors (see below), whose sum is σ = 24554418624. Its totient is φ = 20007303360.

The previous prime is 22224021971. The next prime is 22224022069. The reversal of 22224022021 is 12022042222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22224022021 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 22224022021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224022721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28419075 + ... + 28419856.

It is an arithmetic number, because the mean of its divisors is an integer number (3069302328).

Almost surely, 2^22224022021 is an apocalyptic number.

It is an amenable number.

22224022021 is a deficient number, since it is larger than the sum of its proper divisors (2330396603).

22224022021 is a wasteful number, since it uses less digits than its factorization.

22224022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56838971.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22224022021 its reverse (12022042222), we get a palindrome (34246064243).

The spelling of 22224022021 in words is "twenty-two billion, two hundred twenty-four million, twenty-two thousand, twenty-one".