12222297 has 6 divisors (see below), whose sum is σ = 17654442. Its totient is φ = 8148192.

The previous prime is 12222283. The next prime is 12222307. The reversal of 12222297 is 79222221.

It can be written as a sum of positive squares in only one way, i.e., 10342656 + 1879641 = 3216^2 + 1371^2 .

It is not a de Polignac number, because 12222297 - 2¹⁰ = 12221273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12222297.

It is not an unprimeable number, because it can be changed into a prime (12222257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 679008 + ... + 679025.

It is an arithmetic number, because the mean of its divisors is an integer number (2942407).

Almost surely, 2^12222297 is an apocalyptic number.

It is an amenable number.

12222297 is a deficient number, since it is larger than the sum of its proper divisors (5432145).

12222297 is a wasteful number, since it uses less digits than its factorization.

12222297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358039 (or 1358036 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12222297 is about 3496.0401885562. The cubic root of 12222297 is about 230.3479107686.

The spelling of 12222297 in words is "twelve million, two hundred twenty-two thousand, two hundred ninety-seven".