12222046 has 4 divisors (see below), whose sum is σ = 18333072. Its totient is φ = 6111022.

The previous prime is 12222013. The next prime is 12222047. The reversal of 12222046 is 64022221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64022221 = 17 ⋅3766013.

It is a super-2 number, since 2×12222046² = 298756816852232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055510 + ... + 3055513.

It is an arithmetic number, because the mean of its divisors is an integer number (4583268).

Almost surely, 2^12222046 is an apocalyptic number.

12222046 is a deficient number, since it is larger than the sum of its proper divisors (6111026).

12222046 is an equidigital number, since it uses as much as digits as its factorization.

12222046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111025.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12222046 is about 3496.0042906152. The cubic root of 12222046 is about 230.3463339313.

Adding to 12222046 its reverse (64022221), we get a palindrome (76244267).

The spelling of 12222046 in words is "twelve million, two hundred twenty-two thousand, forty-six".