12011999999999 has 2 divisors, whose sum is σ = 12012000000000. Its totient is φ = 12011999999998.

The previous prime is 12011999999953. The next prime is 12012000000031. The reversal of 12011999999999 is 99999999911021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011999999999 - 2¹² = 12011999995903 is a prime.

12011999999999 is a modest number, since divided by 9999999 gives 1201199 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12011999999999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011999099999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005999999999 + 6006000000000.

It is an arithmetic number, because the mean of its divisors is an integer number (6006000000000).

Almost surely, 2^{12011999999999} is an apocalyptic number.

12011999999999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011999999999 is an equidigital number, since it uses as much as digits as its factorization.

12011999999999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774840978, while the sum is 86.

The spelling of 12011999999999 in words is "twelve trillion, eleven billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".