1144266222 has 64 divisors (see below), whose sum is σ = 2645821440. Its totient is φ = 326268000.

The previous prime is 1144266217. The next prime is 1144266247. The reversal of 1144266222 is 2226624411.

It is a self number, because there is not a number n which added to its sum of digits gives 1144266222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186333 + ... + 192375.

It is an arithmetic number, because the mean of its divisors is an integer number (41340960).

Almost surely, 2^1144266222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144266222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322910720).

1144266222 is an abundant number, since it is smaller than the sum of its proper divisors (1501555218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144266222 is a wasteful number, since it uses less digits than its factorization.

1144266222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6229.

The product of its digits is 9216, while the sum is 30.

The square root of 1144266222 is about 33827.0043308597. The cubic root of 1144266222 is about 1045.9454282894.

The spelling of 1144266222 in words is "one billion, one hundred forty-four million, two hundred sixty-six thousand, two hundred twenty-two".