12422051321 has 4 divisors (see below), whose sum is σ = 12425395200. Its totient is φ = 12418707444.

The previous prime is 12422051293. The next prime is 12422051333. The reversal of 12422051321 is 12315022421.

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: 12315022421 = 13 ⋅947309417.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12422051321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12422051381) 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, 1666361 + ... + 1673798.

It is an arithmetic number, because the mean of its divisors is an integer number (3106348800).

Almost surely, 2^12422051321 is an apocalyptic number.

It is an amenable number.

12422051321 is a deficient number, since it is larger than the sum of its proper divisors (3343879).

12422051321 is an equidigital number, since it uses as much as digits as its factorization.

12422051321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343878.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12422051321 its reverse (12315022421), we get a palindrome (24737073742).

The spelling of 12422051321 in words is "twelve billion, four hundred twenty-two million, fifty-one thousand, three hundred twenty-one".