10122117091 has 2 divisors, whose sum is σ = 10122117092. Its totient is φ = 10122117090.

The previous prime is 10122117017. The next prime is 10122117097. The reversal of 10122117091 is 19071122101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10122117091 - 2²¹ = 10120019939 is a prime.

It is not a weakly prime, because it can be changed into another prime (10122117097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061058545 + 5061058546.

It is an arithmetic number, because the mean of its divisors is an integer number (5061058546).

Almost surely, 2^10122117091 is an apocalyptic number.

10122117091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10122117091 is an equidigital number, since it uses as much as digits as its factorization.

10122117091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 10122117091 its reverse (19071122101), we get a palindrome (29193239192).

The spelling of 10122117091 in words is "ten billion, one hundred twenty-two million, one hundred seventeen thousand, ninety-one".