12277223 has 4 divisors (see below), whose sum is σ = 14031120. Its totient is φ = 10523328.

The previous prime is 12277219. The next prime is 12277241. The reversal of 12277223 is 32277221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32277221 = 131 ⋅246391.

It is a cyclic number.

It is not a de Polignac number, because 12277223 - 2² = 12277219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12277192 and 12277201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277253) 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, 876938 + ... + 876951.

It is an arithmetic number, because the mean of its divisors is an integer number (3507780).

Almost surely, 2^12277223 is an apocalyptic number.

12277223 is a deficient number, since it is larger than the sum of its proper divisors (1753897).

12277223 is an equidigital number, since it uses as much as digits as its factorization.

12277223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753896.

The product of its digits is 2352, while the sum is 26.

The square root of 12277223 is about 3503.8868417801. The cubic root of 12277223 is about 230.6924500435.

The spelling of 12277223 in words is "twelve million, two hundred seventy-seven thousand, two hundred twenty-three".