12212201185837 has 2 divisors, whose sum is σ = 12212201185838. Its totient is φ = 12212201185836.

The previous prime is 12212201185831. The next prime is 12212201185859. The reversal of 12212201185837 is 73858110221221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6378483620356 + 5833717565481 = 2525566^2 + 2415309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212201185837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12212201185793 and 12212201185802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212201185831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106100592918 + 6106100592919.

It is an arithmetic number, because the mean of its divisors is an integer number (6106100592919).

Almost surely, 2^{12212201185837} is an apocalyptic number.

It is an amenable number.

12212201185837 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212201185837 is an equidigital number, since it uses as much as digits as its factorization.

12212201185837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 12212201185837 in words is "twelve trillion, two hundred twelve billion, two hundred one million, one hundred eighty-five thousand, eight hundred thirty-seven".