12101223137 has 2 divisors, whose sum is σ = 12101223138. Its totient is φ = 12101223136.

The previous prime is 12101223133. The next prime is 12101223161. The reversal of 12101223137 is 73132210121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11605537441 + 495685696 = 107729^2 + 22264^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101223137 - 2² = 12101223133 is a prime.

It is a super-2 number, since 2×12101223137² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12101223133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050611568 + 6050611569.

It is an arithmetic number, because the mean of its divisors is an integer number (6050611569).

Almost surely, 2^12101223137 is an apocalyptic number.

It is an amenable number.

12101223137 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101223137 is an equidigital number, since it uses as much as digits as its factorization.

12101223137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 12101223137 its reverse (73132210121), we get a palindrome (85233433258).

The spelling of 12101223137 in words is "twelve billion, one hundred one million, two hundred twenty-three thousand, one hundred thirty-seven".