22321213309 has 12 divisors (see below), whose sum is σ = 23089776192. Its totient is φ = 21577484280.

The previous prime is 22321213303. The next prime is 22321213331. The reversal of 22321213309 is 90331212322.

It is not a de Polignac number, because 22321213309 - 2³ = 22321213301 is a prime.

It is a super-3 number, since 3×22321213309³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321213301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897804 + ... + 922330.

It is an arithmetic number, because the mean of its divisors is an integer number (1924148016).

Almost surely, 2^22321213309 is an apocalyptic number.

It is an amenable number.

22321213309 is a deficient number, since it is larger than the sum of its proper divisors (768562883).

22321213309 is an equidigital number, since it uses as much as digits as its factorization.

22321213309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25536 (or 25505 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 22321213309 in words is "twenty-two billion, three hundred twenty-one million, two hundred thirteen thousand, three hundred nine".