12214320731 has 2 divisors, whose sum is σ = 12214320732. Its totient is φ = 12214320730.

The previous prime is 12214320721. The next prime is 12214320761. The reversal of 12214320731 is 13702341221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12214320731 - 2¹⁰ = 12214319707 is a prime.

It is a super-2 number, since 2×12214320731² (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 12214320731.

It is not a weakly prime, because it can be changed into another prime (12214320721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6107160365 + 6107160366.

It is an arithmetic number, because the mean of its divisors is an integer number (6107160366).

Almost surely, 2^12214320731 is an apocalyptic number.

12214320731 is a deficient number, since it is larger than the sum of its proper divisors (1).

12214320731 is an equidigital number, since it uses as much as digits as its factorization.

12214320731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 12214320731 its reverse (13702341221), we get a palindrome (25916661952).

The spelling of 12214320731 in words is "twelve billion, two hundred fourteen million, three hundred twenty thousand, seven hundred thirty-one".