11222121995837 has 2 divisors, whose sum is σ = 11222121995838. Its totient is φ = 11222121995836.

The previous prime is 11222121995827. The next prime is 11222121995873. The reversal of 11222121995837 is 73859912122211.

It is a happy number.

Together with next prime (11222121995873) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7030484068036 + 4191637927801 = 2651506^2 + 2047349^2 .

It is an emirp because it is prime and its reverse (73859912122211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11222121995837 - 2⁴⁰ = 10122610368061 is a prime.

It is a super-2 number, since 2×11222121995837² (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 (11222121995827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611060997918 + 5611060997919.

It is an arithmetic number, because the mean of its divisors is an integer number (5611060997919).

Almost surely, 2^{11222121995837} is an apocalyptic number.

It is an amenable number.

11222121995837 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222121995837 is an equidigital number, since it uses as much as digits as its factorization.

11222121995837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 53.

The spelling of 11222121995837 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, nine hundred ninety-five thousand, eight hundred thirty-seven".