12889212 has 24 divisors (see below), whose sum is σ = 34371456. Its totient is φ = 3682608.

The previous prime is 12889187. The next prime is 12889231. The reversal of 12889212 is 21298821.

12889212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12889212² = 332263571961888, 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, 76638 + ... + 76805.

It is an arithmetic number, because the mean of its divisors is an integer number (1432144).

Almost surely, 2^12889212 is an apocalyptic number.

12889212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12889212 is an abundant number, since it is smaller than the sum of its proper divisors (21482244).

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

12889212 is a wasteful number, since it uses less digits than its factorization.

12889212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153457 (or 153455 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 12889212 is about 3590.1548713113. The cubic root of 12889212 is about 234.4636144206.

The spelling of 12889212 in words is "twelve million, eight hundred eighty-nine thousand, two hundred twelve".