12606222 has 16 divisors (see below), whose sum is σ = 25305552. Its totient is φ = 4186560.

The previous prime is 12606203. The next prime is 12606239. The reversal of 12606222 is 22260621.

It is a super-2 number, since 2×12606222² = 317833666226568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2053 + ... + 5424.

It is an arithmetic number, because the mean of its divisors is an integer number (1581597).

Almost surely, 2^12606222 is an apocalyptic number.

12606222 is an abundant number, since it is smaller than the sum of its proper divisors (12699330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12606222 is a wasteful number, since it uses less digits than its factorization.

12606222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7763.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12606222 is about 3550.5241866519. The cubic root of 12606222 is about 232.7349734538.

Adding to 12606222 its reverse (22260621), we get a palindrome (34866843).

The spelling of 12606222 in words is "twelve million, six hundred six thousand, two hundred twenty-two".