12021101999971 has 2 divisors, whose sum is σ = 12021101999972. Its totient is φ = 12021101999970.

The previous prime is 12021101999761. The next prime is 12021101999983. The reversal of 12021101999971 is 17999910112021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12021101999971 - 2¹¹ = 12021101997923 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021101999171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010550999985 + 6010550999986.

It is an arithmetic number, because the mean of its divisors is an integer number (6010550999986).

Almost surely, 2^{12021101999971} is an apocalyptic number.

12021101999971 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021101999971 is an equidigital number, since it uses as much as digits as its factorization.

12021101999971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 52.

The spelling of 12021101999971 in words is "twelve trillion, twenty-one billion, one hundred one million, nine hundred ninety-nine thousand, nine hundred seventy-one".