210201220021097 has 2 divisors, whose sum is σ = 210201220021098. Its totient is φ = 210201220021096.

The previous prime is 210201220020959. The next prime is 210201220021153. The reversal of 210201220021097 is 790120022102012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206255669452816 + 3945550568281 = 14361604^2 + 1986341^2 .

It is a cyclic number.

It is not a de Polignac number, because 210201220021097 - 2²² = 210201215826793 is a prime.

It is not a weakly prime, because it can be changed into another prime (210201220021697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105100610010548 + 105100610010549.

It is an arithmetic number, because the mean of its divisors is an integer number (105100610010549).

Almost surely, 2^{210201220021097} is an apocalyptic number.

It is an amenable number.

210201220021097 is a deficient number, since it is larger than the sum of its proper divisors (1).

210201220021097 is an equidigital number, since it uses as much as digits as its factorization.

210201220021097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 210201220021097 in words is "two hundred ten trillion, two hundred one billion, two hundred twenty million, twenty-one thousand, ninety-seven".