12212202011237 has 2 divisors, whose sum is σ = 12212202011238. Its totient is φ = 12212202011236.

The previous prime is 12212202011221. The next prime is 12212202011257. The reversal of 12212202011237 is 73211020221221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12207134564641 + 5067446596 = 3493871^2 + 71186^2 .

It is an emirp because it is prime and its reverse (73211020221221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212202011237 - 2⁴ = 12212202011221 is a prime.

It is a super-2 number, since 2×12212202011237² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212202011257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106101005618 + 6106101005619.

It is an arithmetic number, because the mean of its divisors is an integer number (6106101005619).

Almost surely, 2^{12212202011237} is an apocalyptic number.

It is an amenable number.

12212202011237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212202011237 is an equidigital number, since it uses as much as digits as its factorization.

12212202011237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 12212202011237 its reverse (73211020221221), we get a palindrome (85423222232458).

The spelling of 12212202011237 in words is "twelve trillion, two hundred twelve billion, two hundred two million, eleven thousand, two hundred thirty-seven".