11220022021237 has 2 divisors, whose sum is σ = 11220022021238. Its totient is φ = 11220022021236.

The previous prime is 11220022021217. The next prime is 11220022021319. The reversal of 11220022021237 is 73212022002211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6731954349201 + 4488067672036 = 2594601^2 + 2118506^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220022021237 - 2³⁵ = 11185662282869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220022021217) 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, 5610011010618 + 5610011010619.

It is an arithmetic number, because the mean of its divisors is an integer number (5610011010619).

Almost surely, 2^{11220022021237} is an apocalyptic number.

It is an amenable number.

11220022021237 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220022021237 is an equidigital number, since it uses as much as digits as its factorization.

11220022021237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 11220022021237 its reverse (73212022002211), we get a palindrome (84432044023448).

The spelling of 11220022021237 in words is "eleven trillion, two hundred twenty billion, twenty-two million, twenty-one thousand, two hundred thirty-seven".