12200110009991 has 2 divisors, whose sum is σ = 12200110009992. Its totient is φ = 12200110009990.

The previous prime is 12200110009979. The next prime is 12200110010047. The reversal of 12200110009991 is 19990001100221.

12200110009991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12200110009991 - 2²⁶ = 12200042901127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12200110005991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100055004995 + 6100055004996.

It is an arithmetic number, because the mean of its divisors is an integer number (6100055004996).

Almost surely, 2^{12200110009991} is an apocalyptic number.

12200110009991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200110009991 is an equidigital number, since it uses as much as digits as its factorization.

12200110009991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 12200110009991 in words is "twelve trillion, two hundred billion, one hundred ten million, nine thousand, nine hundred ninety-one".