12222361 has 8 divisors (see below), whose sum is σ = 12815424. Its totient is φ = 11634480.

The previous prime is 12222349. The next prime is 12222367. The reversal of 12222361 is 16322221.

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 12222361 - 2⁹ = 12221849 is a prime.

It is a super-2 number, since 2×12222361² = 298772216828642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222367) 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, 4051 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (1601928).

Almost surely, 2^12222361 is an apocalyptic number.

It is an amenable number.

12222361 is a deficient number, since it is larger than the sum of its proper divisors (593063).

12222361 is a wasteful number, since it uses less digits than its factorization.

12222361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591.

The product of its digits is 288, while the sum is 19.

The square root of 12222361 is about 3496.0493417571. The cubic root of 12222361 is about 230.3483128272.

Adding to 12222361 its reverse (16322221), we get a palindrome (28544582).

The spelling of 12222361 in words is "twelve million, two hundred twenty-two thousand, three hundred sixty-one".