202012199971 has 2 divisors, whose sum is σ = 202012199972. Its totient is φ = 202012199970.

The previous prime is 202012199947. The next prime is 202012200001. The reversal of 202012199971 is 179991210202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202012199971 - 2¹¹ = 202012197923 is a prime.

It is not a weakly prime, because it can be changed into another prime (202012197971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101006099985 + 101006099986.

It is an arithmetic number, because the mean of its divisors is an integer number (101006099986).

Almost surely, 2^202012199971 is an apocalyptic number.

202012199971 is a deficient number, since it is larger than the sum of its proper divisors (1).

202012199971 is an equidigital number, since it uses as much as digits as its factorization.

202012199971 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 43.

The spelling of 202012199971 in words is "two hundred two billion, twelve million, one hundred ninety-nine thousand, nine hundred seventy-one".