12919872229 has 4 divisors (see below), whose sum is σ = 14094406080. Its totient is φ = 11745338380.

The previous prime is 12919872221. The next prime is 12919872239. The reversal of 12919872229 is 92227891921.

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 a cyclic number.

It is not a de Polignac number, because 12919872229 - 2³ = 12919872221 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 (12919872221) 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, 587266909 + ... + 587266930.

It is an arithmetic number, because the mean of its divisors is an integer number (3523601520).

Almost surely, 2^12919872229 is an apocalyptic number.

It is an amenable number.

12919872229 is a deficient number, since it is larger than the sum of its proper divisors (1174533851).

12919872229 is a wasteful number, since it uses less digits than its factorization.

12919872229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174533850.

The product of its digits is 653184, while the sum is 52.

The spelling of 12919872229 in words is "twelve billion, nine hundred nineteen million, eight hundred seventy-two thousand, two hundred twenty-nine".