12000211109989 has 2 divisors, whose sum is σ = 12000211109990. Its totient is φ = 12000211109988.

The previous prime is 12000211109927. The next prime is 12000211110053. The reversal of 12000211109989 is 98990111200021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8916446825764 + 3083764284225 = 2986042^2 + 1756065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000211109989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000211109189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000105554994 + 6000105554995.

It is an arithmetic number, because the mean of its divisors is an integer number (6000105554995).

Almost surely, 2^{12000211109989} is an apocalyptic number.

It is an amenable number.

12000211109989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000211109989 is an equidigital number, since it uses as much as digits as its factorization.

12000211109989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 43.

The spelling of 12000211109989 in words is "twelve trillion, two hundred eleven million, one hundred nine thousand, nine hundred eighty-nine".