1201012199971 has 2 divisors, whose sum is σ = 1201012199972. Its totient is φ = 1201012199970.

The previous prime is 1201012199953. The next prime is 1201012200013. The reversal of 1201012199971 is 1799912101021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201012199971 - 2¹⁵ = 1201012167203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201012199071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600506099985 + 600506099986.

It is an arithmetic number, because the mean of its divisors is an integer number (600506099986).

Almost surely, 2^{1201012199971} is an apocalyptic number.

1201012199971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201012199971 is an equidigital number, since it uses as much as digits as its factorization.

1201012199971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 43.

The spelling of 1201012199971 in words is "one trillion, two hundred one billion, twelve million, one hundred ninety-nine thousand, nine hundred seventy-one".