1210200122137 has 2 divisors, whose sum is σ = 1210200122138. Its totient is φ = 1210200122136.

The previous prime is 1210200122119. The next prime is 1210200122249. The reversal of 1210200122137 is 7312210020121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1035867986176 + 174332135961 = 1017776^2 + 417531^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210200122137 - 2¹⁵ = 1210200089369 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210200122107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605100061068 + 605100061069.

It is an arithmetic number, because the mean of its divisors is an integer number (605100061069).

Almost surely, 2^{1210200122137} is an apocalyptic number.

It is an amenable number.

1210200122137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210200122137 is an equidigital number, since it uses as much as digits as its factorization.

1210200122137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 1210200122137 its reverse (7312210020121), we get a palindrome (8522410142258).

The spelling of 1210200122137 in words is "one trillion, two hundred ten billion, two hundred million, one hundred twenty-two thousand, one hundred thirty-seven".