12225121422 has 8 divisors (see below), whose sum is σ = 24450242856. Its totient is φ = 4075040472.

The previous prime is 12225121421. The next prime is 12225121427. The reversal of 12225121422 is 22412152221.

It is a happy number.

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

12225121422 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12225121392 and 12225121401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225121421) 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, 1018760113 + ... + 1018760124.

It is an arithmetic number, because the mean of its divisors is an integer number (3056280357).

Almost surely, 2^12225121422 is an apocalyptic number.

12225121422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12225121422 is a wasteful number, since it uses less digits than its factorization.

12225121422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037520242.

The product of its digits is 1280, while the sum is 24.

Adding to 12225121422 its reverse (22412152221), we get a palindrome (34637273643).

The spelling of 12225121422 in words is "twelve billion, two hundred twenty-five million, one hundred twenty-one thousand, four hundred twenty-two".