12422032221 has 16 divisors (see below), whose sum is σ = 16848115200. Its totient is φ = 8138730288.

The previous prime is 12422032193. The next prime is 12422032241. The reversal of 12422032221 is 12223022421.

It is not a de Polignac number, because 12422032221 - 2¹⁰ = 12422031197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422032241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834970 + ... + 849716.

It is an arithmetic number, because the mean of its divisors is an integer number (1053007200).

Almost surely, 2^12422032221 is an apocalyptic number.

It is an amenable number.

12422032221 is a deficient number, since it is larger than the sum of its proper divisors (4426082979).

12422032221 is a wasteful number, since it uses less digits than its factorization.

12422032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19568.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12422032221 its reverse (12223022421), we get a palindrome (24645054642).

The spelling of 12422032221 in words is "twelve billion, four hundred twenty-two million, thirty-two thousand, two hundred twenty-one".