1212106817707 has 2 divisors, whose sum is σ = 1212106817708. Its totient is φ = 1212106817706.

The previous prime is 1212106817681. The next prime is 1212106817723. The reversal of 1212106817707 is 7077186012121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212106817707 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212106817797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606053408853 + 606053408854.

It is an arithmetic number, because the mean of its divisors is an integer number (606053408854).

Almost surely, 2^{1212106817707} is an apocalyptic number.

1212106817707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212106817707 is an equidigital number, since it uses as much as digits as its factorization.

1212106817707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 43.

The spelling of 1212106817707 in words is "one trillion, two hundred twelve billion, one hundred six million, eight hundred seventeen thousand, seven hundred seven".