1012220199971 has 2 divisors, whose sum is σ = 1012220199972. Its totient is φ = 1012220199970.

The previous prime is 1012220199959. The next prime is 1012220200081. The reversal of 1012220199971 is 1799910222101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012220199971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012220199071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506110099985 + 506110099986.

It is an arithmetic number, because the mean of its divisors is an integer number (506110099986).

Almost surely, 2^{1012220199971} is an apocalyptic number.

1012220199971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012220199971 is an equidigital number, since it uses as much as digits as its factorization.

1012220199971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 44.

The spelling of 1012220199971 in words is "one trillion, twelve billion, two hundred twenty million, one hundred ninety-nine thousand, nine hundred seventy-one".