212120211222097 has 2 divisors, whose sum is σ = 212120211222098. Its totient is φ = 212120211222096.

The previous prime is 212120211222071. The next prime is 212120211222209. The reversal of 212120211222097 is 790222112021212.

212120211222097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201885336980496 + 10234874241601 = 14208636^2 + 3199199^2 .

It is a cyclic number.

It is not a de Polignac number, because 212120211222097 - 2²⁷ = 212120077004369 is a prime.

It is a super-2 number, since 2×212120211222097² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212120211222047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060105611048 + 106060105611049.

It is an arithmetic number, because the mean of its divisors is an integer number (106060105611049).

Almost surely, 2^{212120211222097} is an apocalyptic number.

It is an amenable number.

212120211222097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212120211222097 is an equidigital number, since it uses as much as digits as its factorization.

212120211222097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 212120211222097 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty-two thousand, ninety-seven".