12276287229 has 4 divisors (see below), whose sum is σ = 16368382976. Its totient is φ = 8184191484.

The previous prime is 12276287227. The next prime is 12276287267. The reversal of 12276287229 is 92278267221.

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.

It is not a de Polignac number, because 12276287229 - 2¹ = 12276287227 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12276287227) 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, 2046047869 + ... + 2046047874.

It is an arithmetic number, because the mean of its divisors is an integer number (4092095744).

Almost surely, 2^12276287229 is an apocalyptic number.

It is an amenable number.

12276287229 is a deficient number, since it is larger than the sum of its proper divisors (4092095747).

12276287229 is an equidigital number, since it uses as much as digits as its factorization.

12276287229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092095746.

The product of its digits is 677376, while the sum is 48.

The spelling of 12276287229 in words is "twelve billion, two hundred seventy-six million, two hundred eighty-seven thousand, two hundred twenty-nine".