11222122201123 has 2 divisors, whose sum is σ = 11222122201124. Its totient is φ = 11222122201122.

The previous prime is 11222122201097. The next prime is 11222122201181. The reversal of 11222122201123 is 32110222122211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222122201123 is a prime.

It is a super-2 number, since 2×11222122201123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11222122201094 and 11222122201103.

It is not a weakly prime, because it can be changed into another prime (11222122211123) 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, 5611061100561 + 5611061100562.

It is an arithmetic number, because the mean of its divisors is an integer number (5611061100562).

Almost surely, 2^{11222122201123} is an apocalyptic number.

11222122201123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222122201123 is an equidigital number, since it uses as much as digits as its factorization.

11222122201123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11222122201123 its reverse (32110222122211), we get a palindrome (43332344323334).

The spelling of 11222122201123 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred one thousand, one hundred twenty-three".