12229748817 has 16 divisors (see below), whose sum is σ = 19157089728. Its totient is φ = 6841817280.

The previous prime is 12229748803. The next prime is 12229748819. The reversal of 12229748817 is 71884792221.

It is not a de Polignac number, because 12229748817 - 2¹² = 12229744721 is a prime.

It is a super-2 number, since 2×12229748817² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12229748817.

It is not an unprimeable number, because it can be changed into a prime (12229748819) 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, 14253358 + ... + 14254215.

It is an arithmetic number, because the mean of its divisors is an integer number (1197318108).

Almost surely, 2^12229748817 is an apocalyptic number.

It is an amenable number.

12229748817 is a deficient number, since it is larger than the sum of its proper divisors (6927340911).

12229748817 is a wasteful number, since it uses less digits than its factorization.

12229748817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28507600.

The product of its digits is 903168, while the sum is 51.

The spelling of 12229748817 in words is "twelve billion, two hundred twenty-nine million, seven hundred forty-eight thousand, eight hundred seventeen".