12214881 has 48 divisors (see below), whose sum is σ = 21525504. Its totient is φ = 6776784.

The previous prime is 12214879. The next prime is 12214889. The reversal of 12214881 is 18841221.

It is not a de Polignac number, because 12214881 - 2¹ = 12214879 is a prime.

It is a super-2 number, since 2×12214881² = 298406635688322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12214889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73060 + ... + 73226.

It is an arithmetic number, because the mean of its divisors is an integer number (448448).

Almost surely, 2^12214881 is an apocalyptic number.

It is an amenable number.

12214881 is a deficient number, since it is larger than the sum of its proper divisors (9310623).

12214881 is an equidigital number, since it uses as much as digits as its factorization.

12214881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 220 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 12214881 is about 3494.9793990809. The cubic root of 12214881 is about 230.3013127158.

The spelling of 12214881 in words is "twelve million, two hundred fourteen thousand, eight hundred eighty-one".