12100201021091 has 2 divisors, whose sum is σ = 12100201021092. Its totient is φ = 12100201021090.

The previous prime is 12100201021049. The next prime is 12100201021123. The reversal of 12100201021091 is 19012010200121.

12100201021091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12100201021091 - 2¹⁰ = 12100201020067 is a prime.

It is not a weakly prime, because it can be changed into another prime (12100201021691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050100510545 + 6050100510546.

It is an arithmetic number, because the mean of its divisors is an integer number (6050100510546).

Almost surely, 2^{12100201021091} is an apocalyptic number.

12100201021091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100201021091 is an equidigital number, since it uses as much as digits as its factorization.

12100201021091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 12100201021091 in words is "twelve trillion, one hundred billion, two hundred one million, twenty-one thousand, ninety-one".