12212148 has 24 divisors (see below), whose sum is σ = 30687328. Its totient is φ = 3757536.

The previous prime is 12212147. The next prime is 12212159. The reversal of 12212148 is 84121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38986 + ... + 39297.

Almost surely, 2^12212148 is an apocalyptic number.

It is an amenable number.

12212148 is an abundant number, since it is smaller than the sum of its proper divisors (18475180).

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

12212148 is a wasteful number, since it uses less digits than its factorization.

12212148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78303 (or 78301 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 12212148 is about 3494.5883877790. The cubic root of 12212148 is about 230.2841352954.

Adding to 12212148 its reverse (84121221), we get a palindrome (96333369).

The spelling of 12212148 in words is "twelve million, two hundred twelve thousand, one hundred forty-eight".