1140610221 has 8 divisors (see below), whose sum is σ = 1689792960. Its totient is φ = 760406796.

The previous prime is 1140610213. The next prime is 1140610309. The reversal of 1140610221 is 1220160411.

1140610221 is a `hidden beast` number, since 11 + 40 + 610 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 1140610221 - 2³ = 1140610213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1140610194 and 1140610203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140610021) 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 in 7 ways as a sum of consecutive naturals, for example, 21122385 + ... + 21122438.

It is an arithmetic number, because the mean of its divisors is an integer number (211224120).

Almost surely, 2^1140610221 is an apocalyptic number.

It is an amenable number.

1140610221 is a deficient number, since it is larger than the sum of its proper divisors (549182739).

1140610221 is an equidigital number, since it uses as much as digits as its factorization.

1140610221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42244832 (or 42244826 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1140610221 is about 33772.9214164247. The cubic root of 1140610221 is about 1044.8302864582.

Adding to 1140610221 its reverse (1220160411), we get a palindrome (2360770632).

The spelling of 1140610221 in words is "one billion, one hundred forty million, six hundred ten thousand, two hundred twenty-one".