12021795 has 24 divisors (see below), whose sum is σ = 20918976. Its totient is φ = 6386688.

The previous prime is 12021761. The next prime is 12021797. The reversal of 12021795 is 59712021.

12021795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12021795 - 2⁸ = 12021539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20547 + ... + 21123.

It is an arithmetic number, because the mean of its divisors is an integer number (871624).

Almost surely, 2^12021795 is an apocalyptic number.

12021795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12021795 is a deficient number, since it is larger than the sum of its proper divisors (8897181).

12021795 is a wasteful number, since it uses less digits than its factorization.

12021795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12021795 is about 3467.2460253060. The cubic root of 12021795 is about 229.0813704972.

The spelling of 12021795 in words is "twelve million, twenty-one thousand, seven hundred ninety-five".