12266331 has 16 divisors (see below), whose sum is σ = 20391168. Its totient is φ = 6372000.

The previous prime is 12266327. The next prime is 12266347. The reversal of 12266331 is 13366221.

It is a happy number.

It is not a de Polignac number, because 12266331 - 2² = 12266327 is a prime.

It is a super-2 number, since 2×12266331² = 300925752403122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12266311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26320 + ... + 26781.

It is an arithmetic number, because the mean of its divisors is an integer number (1274448).

Almost surely, 2^12266331 is an apocalyptic number.

12266331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12266331 is a deficient number, since it is larger than the sum of its proper divisors (8124837).

12266331 is a wasteful number, since it uses less digits than its factorization.

12266331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53122.

The product of its digits is 1296, while the sum is 24.

The square root of 12266331 is about 3502.3322229623. The cubic root of 12266331 is about 230.6242086180.

It can be divided in two parts, 1226 and 6331, that added together give a palindrome (7557).

The spelling of 12266331 in words is "twelve million, two hundred sixty-six thousand, three hundred thirty-one".