111209214097 has 2 divisors, whose sum is σ = 111209214098. Its totient is φ = 111209214096.

The previous prime is 111209214049. The next prime is 111209214101. The reversal of 111209214097 is 790412902111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80016002641 + 31193211456 = 282871^2 + 176616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111209214097 is a prime.

It is not a weakly prime, because it can be changed into another prime (111209274097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55604607048 + 55604607049.

It is an arithmetic number, because the mean of its divisors is an integer number (55604607049).

Almost surely, 2^111209214097 is an apocalyptic number.

It is an amenable number.

111209214097 is a deficient number, since it is larger than the sum of its proper divisors (1).

111209214097 is an equidigital number, since it uses as much as digits as its factorization.

111209214097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 111209214097 in words is "one hundred eleven billion, two hundred nine million, two hundred fourteen thousand, ninety-seven".