22002302321 has 4 divisors (see below), whose sum is σ = 22142444532. Its totient is φ = 21862160112.

The previous prime is 22002302299. The next prime is 22002302363. The reversal of 22002302321 is 12320320022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14444434225 + 7557868096 = 120185^2 + 86936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22002302321 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 22002302321.

It is not an unprimeable number, because it can be changed into a prime (22002352321) 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, 70070870 + ... + 70071183.

It is an arithmetic number, because the mean of its divisors is an integer number (5535611133).

Almost surely, 2^22002302321 is an apocalyptic number.

It is an amenable number.

22002302321 is a deficient number, since it is larger than the sum of its proper divisors (140142211).

22002302321 is a wasteful number, since it uses less digits than its factorization.

22002302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140142210.

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

Adding to 22002302321 its reverse (12320320022), we get a palindrome (34322622343).

The spelling of 22002302321 in words is "twenty-two billion, two million, three hundred two thousand, three hundred twenty-one".