22202122321 has 4 divisors (see below), whose sum is σ = 22230334192. Its totient is φ = 22173910452.

The previous prime is 22202122309. The next prime is 22202122343. The reversal of 22202122321 is 12322120222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12322120222 = 2 ⋅6161060111.

It is a cyclic number.

It is not a de Polignac number, because 22202122321 - 2³¹ = 20054638673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22202122301) 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, 14104755 + ... + 14106328.

It is an arithmetic number, because the mean of its divisors is an integer number (5557583548).

Almost surely, 2^22202122321 is an apocalyptic number.

It is an amenable number.

22202122321 is a deficient number, since it is larger than the sum of its proper divisors (28211871).

22202122321 is an equidigital number, since it uses as much as digits as its factorization.

22202122321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28211870.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22202122321 its reverse (12322120222), we get a palindrome (34524242543).

The spelling of 22202122321 in words is "twenty-two billion, two hundred two million, one hundred twenty-two thousand, three hundred twenty-one".