12501212 has 12 divisors (see below), whose sum is σ = 21948360. Its totient is φ = 6230256.

The previous prime is 12501193. The next prime is 12501257. The reversal of 12501212 is 21210521.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3662 + ... + 6197.

It is an arithmetic number, because the mean of its divisors is an integer number (1829030).

Almost surely, 2^12501212 is an apocalyptic number.

It is an amenable number.

12501212 is a deficient number, since it is larger than the sum of its proper divisors (9447148).

12501212 is a wasteful number, since it uses less digits than its factorization.

12501212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10180 (or 10178 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12501212 is about 3535.7053044619. The cubic root of 12501212 is about 232.0869422458.

Adding to 12501212 its reverse (21210521), we get a palindrome (33711733).

The spelling of 12501212 in words is "twelve million, five hundred one thousand, two hundred twelve".