1244311222 has 16 divisors (see below), whose sum is σ = 2327023872. Its totient is φ = 484796520.

The previous prime is 1244311219. The next prime is 1244311231. The reversal of 1244311222 is 2221134421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1244311193 and 1244311202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4039818 + ... + 4040125.

It is an arithmetic number, because the mean of its divisors is an integer number (145438992).

Almost surely, 2^1244311222 is an apocalyptic number.

1244311222 is a deficient number, since it is larger than the sum of its proper divisors (1082712650).

1244311222 is a wasteful number, since it uses less digits than its factorization.

1244311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079963.

The product of its digits is 768, while the sum is 22.

The square root of 1244311222 is about 35274.7958463263. The cubic root of 1244311222 is about 1075.5807129606.

Adding to 1244311222 its reverse (2221134421), we get a palindrome (3465445643).

The spelling of 1244311222 in words is "one billion, two hundred forty-four million, three hundred eleven thousand, two hundred twenty-two".