10121201971 has 2 divisors, whose sum is σ = 10121201972. Its totient is φ = 10121201970.

The previous prime is 10121201953. The next prime is 10121202053. The reversal of 10121201971 is 17910212101.

It is a weak prime.

It is an emirp because it is prime and its reverse (17910212101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10121201971 - 2⁹ = 10121201459 is a prime.

It is not a weakly prime, because it can be changed into another prime (10121201071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060600985 + 5060600986.

It is an arithmetic number, because the mean of its divisors is an integer number (5060600986).

Almost surely, 2^10121201971 is an apocalyptic number.

10121201971 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121201971 is an equidigital number, since it uses as much as digits as its factorization.

10121201971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 25.

The spelling of 10121201971 in words is "ten billion, one hundred twenty-one million, two hundred one thousand, nine hundred seventy-one".