12087212 has 12 divisors (see below), whose sum is σ = 21511560. Its totient is φ = 5941056.

The previous prime is 12087209. The next prime is 12087247. The reversal of 12087212 is 21278021.

It is a super-2 number, since 2×12087212² = 292201387865888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25373 + ... + 25844.

It is an arithmetic number, because the mean of its divisors is an integer number (1792630).

Almost surely, 2^12087212 is an apocalyptic number.

It is an amenable number.

12087212 is a deficient number, since it is larger than the sum of its proper divisors (9424348).

12087212 is a wasteful number, since it uses less digits than its factorization.

12087212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51280 (or 51278 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 12087212 is about 3476.6667945030. Note that the first 3 decimals coincide. The cubic root of 12087212 is about 229.4961370649.

The spelling of 12087212 in words is "twelve million, eighty-seven thousand, two hundred twelve".