1200122112071 has 2 divisors, whose sum is σ = 1200122112072. Its totient is φ = 1200122112070.

The previous prime is 1200122112067. The next prime is 1200122112097. The reversal of 1200122112071 is 1702112210021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200122112071 - 2² = 1200122112067 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200122012071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600061056035 + 600061056036.

It is an arithmetic number, because the mean of its divisors is an integer number (600061056036).

Almost surely, 2^{1200122112071} is an apocalyptic number.

1200122112071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200122112071 is an equidigital number, since it uses as much as digits as its factorization.

1200122112071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 1200122112071 its reverse (1702112210021), we get a palindrome (2902234322092).

The spelling of 1200122112071 in words is "one trillion, two hundred billion, one hundred twenty-two million, one hundred twelve thousand, seventy-one".