22213220312999 has 4 divisors (see below), whose sum is σ = 22215978699336. Its totient is φ = 22210461926664.

The previous prime is 22213220312947. The next prime is 22213220313007. The reversal of 22213220312999 is 99921302231222.

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-22213220312999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213220315999) 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, 1379181089 + ... + 1379197194.

It is an arithmetic number, because the mean of its divisors is an integer number (5553994674834).

Almost surely, 2^{22213220312999} is an apocalyptic number.

22213220312999 is a deficient number, since it is larger than the sum of its proper divisors (2758386337).

22213220312999 is an equidigital number, since it uses as much as digits as its factorization.

22213220312999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758386336.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 22213220312999 in words is "twenty-two trillion, two hundred thirteen billion, two hundred twenty million, three hundred twelve thousand, nine hundred ninety-nine".