12122422 has 8 divisors (see below), whose sum is σ = 19582416. Its totient is φ = 5594952.

The previous prime is 12122419. The next prime is 12122443. The reversal of 12122422 is 22422121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12122396 and 12122405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233098 + ... + 233149.

It is an arithmetic number, because the mean of its divisors is an integer number (2447802).

Almost surely, 2^12122422 is an apocalyptic number.

12122422 is a deficient number, since it is larger than the sum of its proper divisors (7459994).

12122422 is a wasteful number, since it uses less digits than its factorization.

12122422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466262.

The product of its digits is 128, while the sum is 16.

The square root of 12122422 is about 3481.7268703906. The cubic root of 12122422 is about 229.7187614784.

Adding to 12122422 its reverse (22422121), we get a palindrome (34544543).

It can be divided in two parts, 12122 and 422, that added together give a square (12544 = 112²).

The spelling of 12122422 in words is "twelve million, one hundred twenty-two thousand, four hundred twenty-two".