22111210209971 has 2 divisors, whose sum is σ = 22111210209972. Its totient is φ = 22111210209970.

The previous prime is 22111210209967. The next prime is 22111210210013. The reversal of 22111210209971 is 17990201211122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22111210209971 - 2² = 22111210209967 is a prime.

It is not a weakly prime, because it can be changed into another prime (22111210209271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055605104985 + 11055605104986.

It is an arithmetic number, because the mean of its divisors is an integer number (11055605104986).

Almost surely, 2^{22111210209971} is an apocalyptic number.

22111210209971 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111210209971 is an equidigital number, since it uses as much as digits as its factorization.

22111210209971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 38.

The spelling of 22111210209971 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, two hundred nine thousand, nine hundred seventy-one".