12512226 has 16 divisors (see below), whose sum is σ = 25606944. Its totient is φ = 4073664.

The previous prime is 12512191. The next prime is 12512231. The reversal of 12512226 is 62221521.

It is a happy number.

It is a Curzon 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, 23991 + ... + 24506.

It is an arithmetic number, because the mean of its divisors is an integer number (1600434).

Almost surely, 2^12512226 is an apocalyptic number.

12512226 is an abundant number, since it is smaller than the sum of its proper divisors (13094718).

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

12512226 is a wasteful number, since it uses less digits than its factorization.

12512226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48545.

The product of its digits is 480, while the sum is 21.

The square root of 12512226 is about 3537.2625008614. The cubic root of 12512226 is about 232.1550811123.

Adding to 12512226 its reverse (62221521), we get a palindrome (74733747).

The spelling of 12512226 in words is "twelve million, five hundred twelve thousand, two hundred twenty-six".