12021264 has 40 divisors (see below), whose sum is σ = 34506720. Its totient is φ = 4006944.

The previous prime is 12021259. The next prime is 12021287. The reversal of 12021264 is 46212021.

12021264 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 13482 + ... + 14345.

It is an arithmetic number, because the mean of its divisors is an integer number (862668).

Almost surely, 2^12021264 is an apocalyptic number.

It is an amenable number.

12021264 is an abundant number, since it is smaller than the sum of its proper divisors (22485456).

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

12021264 is a wasteful number, since it uses less digits than its factorization.

12021264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27844 (or 27832 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12021264 is about 3467.1694507191. The cubic root of 12021264 is about 229.0779976232.

Adding to 12021264 its reverse (46212021), we get a palindrome (58233285).

The spelling of 12021264 in words is "twelve million, twenty-one thousand, two hundred sixty-four".