1122220013 has 2 divisors, whose sum is σ = 1122220014. Its totient is φ = 1122220012.

The previous prime is 1122219991. The next prime is 1122220049. The reversal of 1122220013 is 3100222211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598634089 + 523585924 = 24467^2 + 22882^2 .

It is an emirp because it is prime and its reverse (3100222211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122220013 - 2¹⁰ = 1122218989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122220013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122220093) 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, 561110006 + 561110007.

It is an arithmetic number, because the mean of its divisors is an integer number (561110007).

Almost surely, 2^1122220013 is an apocalyptic number.

It is an amenable number.

1122220013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122220013 is an equidigital number, since it uses as much as digits as its factorization.

1122220013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1122220013 is about 33499.5524298460. The cubic root of 1122220013 is about 1039.1845225380.

Adding to 1122220013 its reverse (3100222211), we get a palindrome (4222442224).

The spelling of 1122220013 in words is "one billion, one hundred twenty-two million, two hundred twenty thousand, thirteen".