2101200097 has 2 divisors, whose sum is σ = 2101200098. Its totient is φ = 2101200096.

The previous prime is 2101200089. The next prime is 2101200137. The reversal of 2101200097 is 7900021012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1799795776 + 301404321 = 42424^2 + 17361^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101200097 - 2³ = 2101200089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101200037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050600048 + 1050600049.

It is an arithmetic number, because the mean of its divisors is an integer number (1050600049).

Almost surely, 2^2101200097 is an apocalyptic number.

It is an amenable number.

2101200097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101200097 is an equidigital number, since it uses as much as digits as its factorization.

2101200097 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 22.

The square root of 2101200097 is about 45838.8492111222. The cubic root of 2101200097 is about 1280.8230580916.

The spelling of 2101200097 in words is "two billion, one hundred one million, two hundred thousand, ninety-seven".