1140422221 has 8 divisors (see below), whose sum is σ = 1168421760. Its totient is φ = 1112489952.

The previous prime is 1140422219. The next prime is 1140422243. The reversal of 1140422221 is 1222240411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1140422221 - 2¹ = 1140422219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140422821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18396 + ... + 51178.

It is an arithmetic number, because the mean of its divisors is an integer number (146052720).

Almost surely, 2^1140422221 is an apocalyptic number.

It is an amenable number.

1140422221 is a deficient number, since it is larger than the sum of its proper divisors (27999539).

1140422221 is an equidigital number, since it uses as much as digits as its factorization.

1140422221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33635.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1140422221 is about 33770.1380068249. The cubic root of 1140422221 is about 1044.7728789164.

Adding to 1140422221 its reverse (1222240411), we get a palindrome (2362662632).

The spelling of 1140422221 in words is "one billion, one hundred forty million, four hundred twenty-two thousand, two hundred twenty-one".