22122302321 has 8 divisors (see below), whose sum is σ = 25870599744. Its totient is φ = 18520997040.

The previous prime is 22122302233. The next prime is 22122302341. The reversal of 22122302321 is 12320322122.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-22122302321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22122302293 and 22122302302.

It is not an unprimeable number, because it can be changed into a prime (22122302341) 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, 36747710 + ... + 36748311.

It is an arithmetic number, because the mean of its divisors is an integer number (3233824968).

Almost surely, 2^22122302321 is an apocalyptic number.

It is an amenable number.

22122302321 is a deficient number, since it is larger than the sum of its proper divisors (3748297423).

22122302321 is an equidigital number, since it uses as much as digits as its factorization.

22122302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73496071.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22122302321 its reverse (12320322122), we get a palindrome (34442624443).

The spelling of 22122302321 in words is "twenty-two billion, one hundred twenty-two million, three hundred two thousand, three hundred twenty-one".