12222997 has 8 divisors (see below), whose sum is σ = 12515072. Its totient is φ = 11934000.

The previous prime is 12222989. The next prime is 12223009. The reversal of 12222997 is 79922221.

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

It is a cyclic number.

It is not a de Polignac number, because 12222997 - 2³ = 12222989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8548 + ... + 9874.

It is an arithmetic number, because the mean of its divisors is an integer number (1564384).

Almost surely, 2^12222997 is an apocalyptic number.

It is an amenable number.

12222997 is a deficient number, since it is larger than the sum of its proper divisors (292075).

12222997 is a wasteful number, since it uses less digits than its factorization.

12222997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539.

The product of its digits is 9072, while the sum is 34.

The square root of 12222997 is about 3496.1403003884. The cubic root of 12222997 is about 230.3523082088.

The spelling of 12222997 in words is "twelve million, two hundred twenty-two thousand, nine hundred ninety-seven".