210222211091 has 2 divisors, whose sum is σ = 210222211092. Its totient is φ = 210222211090.

The previous prime is 210222211063. The next prime is 210222211139. The reversal of 210222211091 is 190112222012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210222211091 - 2¹⁸ = 210221948947 is a prime.

It is not a weakly prime, because it can be changed into another prime (210222211051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111105545 + 105111105546.

It is an arithmetic number, because the mean of its divisors is an integer number (105111105546).

Almost surely, 2^210222211091 is an apocalyptic number.

210222211091 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222211091 is an equidigital number, since it uses as much as digits as its factorization.

210222211091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 210222211091 in words is "two hundred ten billion, two hundred twenty-two million, two hundred eleven thousand, ninety-one".