210002220100091 has 2 divisors, whose sum is σ = 210002220100092. Its totient is φ = 210002220100090.

The previous prime is 210002220100039. The next prime is 210002220100147. The reversal of 210002220100091 is 190001022200012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210002220100091 - 2¹⁸ = 210002219837947 is a prime.

It is not a weakly prime, because it can be changed into another prime (210002220100391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105001110050045 + 105001110050046.

It is an arithmetic number, because the mean of its divisors is an integer number (105001110050046).

Almost surely, 2^{210002220100091} is an apocalyptic number.

210002220100091 is a deficient number, since it is larger than the sum of its proper divisors (1).

210002220100091 is an equidigital number, since it uses as much as digits as its factorization.

210002220100091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 210002220100091 in words is "two hundred ten trillion, two billion, two hundred twenty million, one hundred thousand, ninety-one".