210211122111091 has 2 divisors, whose sum is σ = 210211122111092. Its totient is φ = 210211122111090.

The previous prime is 210211122110999. The next prime is 210211122111119. The reversal of 210211122111091 is 190111221112012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210211122111091 - 2⁷ = 210211122110963 is a prime.

It is not a weakly prime, because it can be changed into another prime (210211122118091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105561055545 + 105105561055546.

It is an arithmetic number, because the mean of its divisors is an integer number (105105561055546).

Almost surely, 2^{210211122111091} is an apocalyptic number.

210211122111091 is a deficient number, since it is larger than the sum of its proper divisors (1).

210211122111091 is an equidigital number, since it uses as much as digits as its factorization.

210211122111091 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 25.

The spelling of 210211122111091 in words is "two hundred ten trillion, two hundred eleven billion, one hundred twenty-two million, one hundred eleven thousand, ninety-one".