12222412 has 6 divisors (see below), whose sum is σ = 21389228. Its totient is φ = 6111204.

The previous prime is 12222403. The next prime is 12222433. The reversal of 12222412 is 21422221.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527798 + ... + 1527805.

Almost surely, 2^12222412 is an apocalyptic number.

It is an amenable number.

12222412 is a deficient number, since it is larger than the sum of its proper divisors (9166816).

12222412 is a wasteful number, since it uses less digits than its factorization.

12222412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055607 (or 3055605 counting only the distinct ones).

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

The square root of 12222412 is about 3496.0566356969. The cubic root of 12222412 is about 230.3486332167.

Adding to 12222412 its reverse (21422221), we get a palindrome (33644633).

The spelling of 12222412 in words is "twelve million, two hundred twenty-two thousand, four hundred twelve".