1312222222097 has 2 divisors, whose sum is σ = 1312222222098. Its totient is φ = 1312222222096.

The previous prime is 1312222222043. The next prime is 1312222222123. The reversal of 1312222222097 is 7902222222131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1300696911361 + 11525310736 = 1140481^2 + 107356^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312222222097 - 2¹² = 1312222218001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312224222097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656111111048 + 656111111049.

It is an arithmetic number, because the mean of its divisors is an integer number (656111111049).

Almost surely, 2^{1312222222097} is an apocalyptic number.

It is an amenable number.

1312222222097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312222222097 is an equidigital number, since it uses as much as digits as its factorization.

1312222222097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 1312222222097 in words is "one trillion, three hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, ninety-seven".