11221012211237 has 2 divisors, whose sum is σ = 11221012211238. Its totient is φ = 11221012211236.

The previous prime is 11221012211191. The next prime is 11221012211251. The reversal of 11221012211237 is 73211221012211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10354500701281 + 866511509956 = 3217841^2 + 930866^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221012211237 - 2¹⁸ = 11221011949093 is a prime.

It is a super-2 number, since 2×11221012211237² (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 (11221012210237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610506105618 + 5610506105619.

It is an arithmetic number, because the mean of its divisors is an integer number (5610506105619).

Almost surely, 2^{11221012211237} is an apocalyptic number.

It is an amenable number.

11221012211237 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221012211237 is an equidigital number, since it uses as much as digits as its factorization.

11221012211237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 11221012211237 its reverse (73211221012211), we get a palindrome (84432233223448).

The spelling of 11221012211237 in words is "eleven trillion, two hundred twenty-one billion, twelve million, two hundred eleven thousand, two hundred thirty-seven".