211200012120091 has 2 divisors, whose sum is σ = 211200012120092. Its totient is φ = 211200012120090.

The previous prime is 211200012120073. The next prime is 211200012120101. The reversal of 211200012120091 is 190021210002112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211200012120091 - 2²⁹ = 211199475249179 is a prime.

It is not a weakly prime, because it can be changed into another prime (211200012220091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600006060045 + 105600006060046.

It is an arithmetic number, because the mean of its divisors is an integer number (105600006060046).

Almost surely, 2^{211200012120091} is an apocalyptic number.

211200012120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

211200012120091 is an equidigital number, since it uses as much as digits as its factorization.

211200012120091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 211200012120091 in words is "two hundred eleven trillion, two hundred billion, twelve million, one hundred twenty thousand, ninety-one".