10211100091 has 2 divisors, whose sum is σ = 10211100092. Its totient is φ = 10211100090.

The previous prime is 10211100083. The next prime is 10211100113. The reversal of 10211100091 is 19000111201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10211100091 - 2³ = 10211100083 is a prime.

It is not a weakly prime, because it can be changed into another prime (10221100091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105550045 + 5105550046.

It is an arithmetic number, because the mean of its divisors is an integer number (5105550046).

Almost surely, 2^10211100091 is an apocalyptic number.

10211100091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211100091 is an equidigital number, since it uses as much as digits as its factorization.

10211100091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 10211100091 its reverse (19000111201), we get a palindrome (29211211292).

The spelling of 10211100091 in words is "ten billion, two hundred eleven million, one hundred thousand, ninety-one".