11011212097 has 2 divisors, whose sum is σ = 11011212098. Its totient is φ = 11011212096.

The previous prime is 11011212089. The next prime is 11011212127. The reversal of 11011212097 is 79021211011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9607136256 + 1404075841 = 98016^2 + 37471^2 .

It is an emirp because it is prime and its reverse (79021211011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11011212097 - 2³ = 11011212089 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011212077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505606048 + 5505606049.

It is an arithmetic number, because the mean of its divisors is an integer number (5505606049).

Almost surely, 2^11011212097 is an apocalyptic number.

It is an amenable number.

11011212097 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011212097 is an equidigital number, since it uses as much as digits as its factorization.

11011212097 is an evil number, because the sum of its binary digits is even.

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

The spelling of 11011212097 in words is "eleven billion, eleven million, two hundred twelve thousand, ninety-seven".