1223211044 has 12 divisors (see below), whose sum is σ = 2335221168. Its totient is φ = 556005000.

The previous prime is 1223211043. The next prime is 1223211079. The reversal of 1223211044 is 4401123221.

It is not an unprimeable number, because it can be changed into a prime (1223211043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13900082 + ... + 13900169.

It is an arithmetic number, because the mean of its divisors is an integer number (194601764).

Almost surely, 2^1223211044 is an apocalyptic number.

It is an amenable number.

1223211044 is a deficient number, since it is larger than the sum of its proper divisors (1112010124).

1223211044 is a wasteful number, since it uses less digits than its factorization.

1223211044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27800266 (or 27800264 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1223211044 is about 34974.4341483890. The cubic root of 1223211044 is about 1069.4663668030.

Adding to 1223211044 its reverse (4401123221), we get a palindrome (5624334265).

The spelling of 1223211044 in words is "one billion, two hundred twenty-three million, two hundred eleven thousand, forty-four".