12297922816 has 81 divisors (see below), whose sum is σ = 25530291241. Its totient is φ = 5912087552.

The previous prime is 12297922781. The next prime is 12297922823. The reversal of 12297922816 is 61822979221.

It is a happy number.

The square root of 12297922816 is 110896.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6448732416 + 5849190400 = 80304^2 + 76480^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12297922816.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51455625 + ... + 51455863.

Almost surely, 2^12297922816 is an apocalyptic number.

12297922816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12297922816 is the 110896-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12297922816

12297922816 is an abundant number, since it is smaller than the sum of its proper divisors (13232368425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12297922816 is an frugal number, since it uses more digits than its factorization.

12297922816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 270 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

Multiplying 12297922816 by its sum of digits (49), we get a square (602598217984 = 776272²).

The spelling of 12297922816 in words is "twelve billion, two hundred ninety-seven million, nine hundred twenty-two thousand, eight hundred sixteen".