1111220441 has 2 divisors, whose sum is σ = 1111220442. Its totient is φ = 1111220440.

The previous prime is 1111220437. The next prime is 1111220471. The reversal of 1111220441 is 1440221111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 856147600 + 255072841 = 29260^2 + 15971^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111220441 - 2² = 1111220437 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111220431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555610220 + 555610221.

It is an arithmetic number, because the mean of its divisors is an integer number (555610221).

Almost surely, 2^1111220441 is an apocalyptic number.

It is an amenable number.

1111220441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111220441 is an equidigital number, since it uses as much as digits as its factorization.

1111220441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1111220441 is about 33334.9732413272. The cubic root of 1111220441 is about 1035.7781388756.

Adding to 1111220441 its reverse (1440221111), we get a palindrome (2551441552).

The spelling of 1111220441 in words is "one billion, one hundred eleven million, two hundred twenty thousand, four hundred forty-one".