22321220323 has 4 divisors (see below), whose sum is σ = 22359246840. Its totient is φ = 22283193808.

The previous prime is 22321220249. The next prime is 22321220351. The reversal of 22321220323 is 32302212322.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22321220323 is a prime.

It is a super-3 number, since 3×22321220323³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22321220294 and 22321220303.

It is not an unprimeable number, because it can be changed into a prime (22321220393) 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, 19012378 + ... + 19013551.

It is an arithmetic number, because the mean of its divisors is an integer number (5589811710).

Almost surely, 2^22321220323 is an apocalyptic number.

22321220323 is a deficient number, since it is larger than the sum of its proper divisors (38026517).

22321220323 is an equidigital number, since it uses as much as digits as its factorization.

22321220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38026516.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 22321220323 its reverse (32302212322), we get a palindrome (54623432645).

The spelling of 22321220323 in words is "twenty-two billion, three hundred twenty-one million, two hundred twenty thousand, three hundred twenty-three".