1140322221 has 24 divisors (see below), whose sum is σ = 1809213120. Its totient is φ = 688887936.

The previous prime is 1140322213. The next prime is 1140322229. The reversal of 1140322221 is 1222230411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1140322213) and next prime (1140322229).

It is not a de Polignac number, because 1140322221 - 2³ = 1140322213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1140322194 and 1140322203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140322229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141036 + ... + 148901.

It is an arithmetic number, because the mean of its divisors is an integer number (75383880).

Almost surely, 2^1140322221 is an apocalyptic number.

It is an amenable number.

1140322221 is a deficient number, since it is larger than the sum of its proper divisors (668890899).

1140322221 is a wasteful number, since it uses less digits than its factorization.

1140322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289985 (or 289982 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1140322221 is about 33768.6573763305. The cubic root of 1140322221 is about 1044.7423404193.

Adding to 1140322221 its reverse (1222230411), we get a palindrome (2362552632).

The spelling of 1140322221 in words is "one billion, one hundred forty million, three hundred twenty-two thousand, two hundred twenty-one".