1210122220897 has 2 divisors, whose sum is σ = 1210122220898. Its totient is φ = 1210122220896.

The previous prime is 1210122220891. The next prime is 1210122221023. The reversal of 1210122220897 is 7980222210121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056200176656 + 153922044241 = 1027716^2 + 392329^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210122220897 - 2¹¹ = 1210122218849 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210122220891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605061110448 + 605061110449.

It is an arithmetic number, because the mean of its divisors is an integer number (605061110449).

Almost surely, 2^{1210122220897} is an apocalyptic number.

It is an amenable number.

1210122220897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210122220897 is an equidigital number, since it uses as much as digits as its factorization.

1210122220897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 1210122220897 in words is "one trillion, two hundred ten billion, one hundred twenty-two million, two hundred twenty thousand, eight hundred ninety-seven".