122312112449987 has 2 divisors, whose sum is σ = 122312112449988. Its totient is φ = 122312112449986.

The previous prime is 122312112449953. The next prime is 122312112450067. The reversal of 122312112449987 is 789944211213221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122312112449987 - 2¹² = 122312112445891 is a prime.

It is not a weakly prime, because it can be changed into another prime (122312112445987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61156056224993 + 61156056224994.

It is an arithmetic number, because the mean of its divisors is an integer number (61156056224994).

Almost surely, 2^{122312112449987} is an apocalyptic number.

122312112449987 is a deficient number, since it is larger than the sum of its proper divisors (1).

122312112449987 is an equidigital number, since it uses as much as digits as its factorization.

122312112449987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 56.

The spelling of 122312112449987 in words is "one hundred twenty-two trillion, three hundred twelve billion, one hundred twelve million, four hundred forty-nine thousand, nine hundred eighty-seven".