12233381 has 4 divisors (see below), whose sum is σ = 12243264. Its totient is φ = 12223500.

The previous prime is 12233369. The next prime is 12233393. The reversal of 12233381 is 18333221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18333221 = 607 ⋅30203.

It is an interprime number because it is at equal distance from previous prime (12233369) and next prime (12233393).

It is a cyclic number.

It is not a de Polignac number, because 12233381 - 2¹⁰ = 12232357 is a prime.

It is a super-2 number, since 2×12233381² = 299311221382322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2765 + ... + 5666.

It is an arithmetic number, because the mean of its divisors is an integer number (3060816).

Almost surely, 2^12233381 is an apocalyptic number.

It is an amenable number.

12233381 is a deficient number, since it is larger than the sum of its proper divisors (9883).

12233381 is an equidigital number, since it uses as much as digits as its factorization.

12233381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882.

The product of its digits is 864, while the sum is 23.

The square root of 12233381 is about 3497.6250513741. The cubic root of 12233381 is about 230.4175213836.

The spelling of 12233381 in words is "twelve million, two hundred thirty-three thousand, three hundred eighty-one".