1126562221 has 2 divisors, whose sum is σ = 1126562222. Its totient is φ = 1126562220.

The previous prime is 1126562209. The next prime is 1126562291. The reversal of 1126562221 is 1222656211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1059502500 + 67059721 = 32550^2 + 8189^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126562221 - 2⁵ = 1126562189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1126562221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126562291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563281110 + 563281111.

It is an arithmetic number, because the mean of its divisors is an integer number (563281111).

Almost surely, 2^1126562221 is an apocalyptic number.

It is an amenable number.

1126562221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126562221 is an equidigital number, since it uses as much as digits as its factorization.

1126562221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 1126562221 is about 33564.2997990424. The cubic root of 1126562221 is about 1040.5231037684.

The spelling of 1126562221 in words is "one billion, one hundred twenty-six million, five hundred sixty-two thousand, two hundred twenty-one".