12340222997 has 2 divisors, whose sum is σ = 12340222998. Its totient is φ = 12340222996.

The previous prime is 12340222963. The next prime is 12340223047. The reversal of 12340222997 is 79922204321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7527471121 + 4812751876 = 86761^2 + 69374^2 .

It is an emirp because it is prime and its reverse (79922204321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12340222997 - 2⁶ = 12340222933 is a prime.

It is a super-2 number, since 2×12340222997² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12340222597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6170111498 + 6170111499.

It is an arithmetic number, because the mean of its divisors is an integer number (6170111499).

Almost surely, 2^12340222997 is an apocalyptic number.

It is an amenable number.

12340222997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12340222997 is an equidigital number, since it uses as much as digits as its factorization.

12340222997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 12340222997 in words is "twelve billion, three hundred forty million, two hundred twenty-two thousand, nine hundred ninety-seven".