1210201110137 has 2 divisors, whose sum is σ = 1210201110138. Its totient is φ = 1210201110136.

The previous prime is 1210201110101. The next prime is 1210201110193. The reversal of 1210201110137 is 7310111020121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125998999161 + 84202110976 = 1061131^2 + 290176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210201110137 - 2¹⁶ = 1210201044601 is a prime.

It is a super-3 number, since 3×1210201110137³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1210201110337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605100555068 + 605100555069.

It is an arithmetic number, because the mean of its divisors is an integer number (605100555069).

Almost surely, 2^{1210201110137} is an apocalyptic number.

It is an amenable number.

1210201110137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210201110137 is an equidigital number, since it uses as much as digits as its factorization.

1210201110137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 1210201110137 its reverse (7310111020121), we get a palindrome (8520312130258).

The spelling of 1210201110137 in words is "one trillion, two hundred ten billion, two hundred one million, one hundred ten thousand, one hundred thirty-seven".