11001211212097 has 2 divisors, whose sum is σ = 11001211212098. Its totient is φ = 11001211212096.

The previous prime is 11001211212053. The next prime is 11001211212107. The reversal of 11001211212097 is 79021211210011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5632462704961 + 5368748507136 = 2373281^2 + 2317056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001211212097 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001211216097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500605606048 + 5500605606049.

It is an arithmetic number, because the mean of its divisors is an integer number (5500605606049).

Almost surely, 2^{11001211212097} is an apocalyptic number.

It is an amenable number.

11001211212097 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001211212097 is an equidigital number, since it uses as much as digits as its factorization.

11001211212097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 28.

The spelling of 11001211212097 in words is "eleven trillion, one billion, two hundred eleven million, two hundred twelve thousand, ninety-seven".