201122220097 has 2 divisors, whose sum is σ = 201122220098. Its totient is φ = 201122220096.

The previous prime is 201122220031. The next prime is 201122220181. The reversal of 201122220097 is 790022221102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124468545601 + 76653674496 = 352801^2 + 276864^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122220097 - 2³¹ = 198974736449 is a prime.

It is a super-2 number, since 2×201122220097² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201122229097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561110048 + 100561110049.

It is an arithmetic number, because the mean of its divisors is an integer number (100561110049).

Almost surely, 2^201122220097 is an apocalyptic number.

It is an amenable number.

201122220097 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122220097 is an equidigital number, since it uses as much as digits as its factorization.

201122220097 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 28.

Adding to 201122220097 its reverse (790022221102), we get a palindrome (991144441199).

The spelling of 201122220097 in words is "two hundred one billion, one hundred twenty-two million, two hundred twenty thousand, ninety-seven".