1244322222 has 128 divisors (see below), whose sum is σ = 3005517312. Its totient is φ = 338496000.

The previous prime is 1244322203. The next prime is 1244322239. The reversal of 1244322222 is 2222234421.

It is a junction number, because it is equal to n+sod(n) for n = 1244322192 and 1244322201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7192528 + ... + 7192700.

It is an arithmetic number, because the mean of its divisors is an integer number (23480604).

Almost surely, 2^1244322222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244322222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502758656).

1244322222 is an abundant number, since it is smaller than the sum of its proper divisors (1761195090).

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

1244322222 is a wasteful number, since it uses less digits than its factorization.

1244322222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its digits is 3072, while the sum is 24.

The square root of 1244322222 is about 35274.9517646729. The cubic root of 1244322222 is about 1075.5838824123.

Adding to 1244322222 its reverse (2222234421), we get a palindrome (3466556643).

The spelling of 1244322222 in words is "one billion, two hundred forty-four million, three hundred twenty-two thousand, two hundred twenty-two".