112211201999971 has 2 divisors, whose sum is σ = 112211201999972. Its totient is φ = 112211201999970.

The previous prime is 112211201999969. The next prime is 112211202000041. The reversal of 112211201999971 is 179999102112211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112211201999971 - 2¹ = 112211201999969 is a prime.

Together with 112211201999969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112211201999951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56105600999985 + 56105600999986.

It is an arithmetic number, because the mean of its divisors is an integer number (56105600999986).

Almost surely, 2^{112211201999971} is an apocalyptic number.

112211201999971 is a deficient number, since it is larger than the sum of its proper divisors (1).

112211201999971 is an equidigital number, since it uses as much as digits as its factorization.

112211201999971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 55.

The spelling of 112211201999971 in words is "one hundred twelve trillion, two hundred eleven billion, two hundred one million, nine hundred ninety-nine thousand, nine hundred seventy-one".