122206525897 has 2 divisors, whose sum is σ = 122206525898. Its totient is φ = 122206525896.

The previous prime is 122206525841. The next prime is 122206525919. The reversal of 122206525897 is 798525602221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120651327801 + 1555198096 = 347349^2 + 39436^2 .

It is a cyclic number.

It is not a de Polignac number, because 122206525897 - 2⁷ = 122206525769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122206525897.

It is not a weakly prime, because it can be changed into another prime (122206525817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61103262948 + 61103262949.

It is an arithmetic number, because the mean of its divisors is an integer number (61103262949).

Almost surely, 2^122206525897 is an apocalyptic number.

It is an amenable number.

122206525897 is a deficient number, since it is larger than the sum of its proper divisors (1).

122206525897 is an equidigital number, since it uses as much as digits as its factorization.

122206525897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 122206525897 in words is "one hundred twenty-two billion, two hundred six million, five hundred twenty-five thousand, eight hundred ninety-seven".