11222211737857 has 2 divisors, whose sum is σ = 11222211737858. Its totient is φ = 11222211737856.

The previous prime is 11222211737839. The next prime is 11222211737897. The reversal of 11222211737857 is 75873711222211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6496809645456 + 4725402092401 = 2548884^2 + 2173799^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222211737857 - 2³¹ = 11220064254209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11222211737857.

It is not a weakly prime, because it can be changed into another prime (11222211737837) 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, 5611105868928 + 5611105868929.

It is an arithmetic number, because the mean of its divisors is an integer number (5611105868929).

Almost surely, 2^{11222211737857} is an apocalyptic number.

It is an amenable number.

11222211737857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222211737857 is an equidigital number, since it uses as much as digits as its factorization.

11222211737857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 49.

The spelling of 11222211737857 in words is "eleven trillion, two hundred twenty-two billion, two hundred eleven million, seven hundred thirty-seven thousand, eight hundred fifty-seven".