12001223012237 has 2 divisors, whose sum is σ = 12001223012238. Its totient is φ = 12001223012236.

The previous prime is 12001223012213. The next prime is 12001223012281. The reversal of 12001223012237 is 73221032210021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8351094310276 + 3650128701961 = 2889826^2 + 1910531^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001223012237 - 2¹⁶ = 12001222946701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001223012837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000611506118 + 6000611506119.

It is an arithmetic number, because the mean of its divisors is an integer number (6000611506119).

Almost surely, 2^{12001223012237} is an apocalyptic number.

It is an amenable number.

12001223012237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001223012237 is an equidigital number, since it uses as much as digits as its factorization.

12001223012237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 12001223012237 its reverse (73221032210021), we get a palindrome (85222255222258).

The spelling of 12001223012237 in words is "twelve trillion, one billion, two hundred twenty-three million, twelve thousand, two hundred thirty-seven".