2111212097 has 2 divisors, whose sum is σ = 2111212098. Its totient is φ = 2111212096.

The previous prime is 2111212091. The next prime is 2111212157. The reversal of 2111212097 is 7902121112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2053086721 + 58125376 = 45311^2 + 7624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111212097 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111212091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055606048 + 1055606049.

It is an arithmetic number, because the mean of its divisors is an integer number (1055606049).

Almost surely, 2^2111212097 is an apocalyptic number.

It is an amenable number.

2111212097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111212097 is an equidigital number, since it uses as much as digits as its factorization.

2111212097 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 26.

The square root of 2111212097 is about 45947.9281034521. The cubic root of 2111212097 is about 1282.8541650630.

The spelling of 2111212097 in words is "two billion, one hundred eleven million, two hundred twelve thousand, ninety-seven".