22121324309 has 8 divisors (see below), whose sum is σ = 25325333568. Its totient is φ = 18928270080.

The previous prime is 22121324293. The next prime is 22121324311. The reversal of 22121324309 is 90342312122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22121324309 - 2⁴ = 22121324293 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 (22121324369) 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, 2734427 + ... + 2742504.

It is an arithmetic number, because the mean of its divisors is an integer number (3165666696).

Almost surely, 2^22121324309 is an apocalyptic number.

It is an amenable number.

22121324309 is a deficient number, since it is larger than the sum of its proper divisors (3204009259).

22121324309 is an equidigital number, since it uses as much as digits as its factorization.

22121324309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477515.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 22121324309 in words is "twenty-two billion, one hundred twenty-one million, three hundred twenty-four thousand, three hundred nine".