111110212097 has 2 divisors, whose sum is σ = 111110212098. Its totient is φ = 111110212096.

The previous prime is 111110212091. The next prime is 111110212111. The reversal of 111110212097 is 790212011111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107432517361 + 3677694736 = 327769^2 + 60644^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110212097 - 2⁶ = 111110212033 is a prime.

It is not a weakly prime, because it can be changed into another prime (111110212091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555106048 + 55555106049.

It is an arithmetic number, because the mean of its divisors is an integer number (55555106049).

Almost surely, 2^111110212097 is an apocalyptic number.

It is an amenable number.

111110212097 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110212097 is an equidigital number, since it uses as much as digits as its factorization.

111110212097 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 26.

The spelling of 111110212097 in words is "one hundred eleven billion, one hundred ten million, two hundred twelve thousand, ninety-seven".