12262881 has 4 divisors (see below), whose sum is σ = 16350512. Its totient is φ = 8175252.

The previous prime is 12262829. The next prime is 12262883. The reversal of 12262881 is 18826221.

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 an emirpimes, since its reverse is a distinct semiprime: 18826221 = 3 ⋅6275407.

It is not a de Polignac number, because 12262881 - 2¹⁹ = 11738593 is a prime.

It is a super-2 number, since 2×12262881² = 300756500840322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12262883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2043811 + ... + 2043816.

It is an arithmetic number, because the mean of its divisors is an integer number (4087628).

Almost surely, 2^12262881 is an apocalyptic number.

It is an amenable number.

12262881 is a deficient number, since it is larger than the sum of its proper divisors (4087631).

12262881 is an equidigital number, since it uses as much as digits as its factorization.

12262881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087630.

The product of its digits is 3072, while the sum is 30.

The square root of 12262881 is about 3501.8396593791. The cubic root of 12262881 is about 230.6025849793.

The spelling of 12262881 in words is "twelve million, two hundred sixty-two thousand, eight hundred eighty-one".