1113221401 has 2 divisors, whose sum is σ = 1113221402. Its totient is φ = 1113221400.

The previous prime is 1113221371. The next prime is 1113221411. The reversal of 1113221401 is 1041223111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1107292176 + 5929225 = 33276^2 + 2435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113221401 - 2²¹ = 1111124249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113221411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556610700 + 556610701.

It is an arithmetic number, because the mean of its divisors is an integer number (556610701).

Almost surely, 2^1113221401 is an apocalyptic number.

It is an amenable number.

1113221401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113221401 is an equidigital number, since it uses as much as digits as its factorization.

1113221401 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 16.

The square root of 1113221401 is about 33364.9726659561. The cubic root of 1113221401 is about 1036.3994700974.

Adding to 1113221401 its reverse (1041223111), we get a palindrome (2154444512).

The spelling of 1113221401 in words is "one billion, one hundred thirteen million, two hundred twenty-one thousand, four hundred one".