1122333221 has 16 divisors (see below), whose sum is σ = 1168812288. Its totient is φ = 1076889600.

The previous prime is 1122333203. The next prime is 1122333241. The reversal of 1122333221 is 1223332211.

It is a de Polignac number, because none of the positive numbers 2^k-1122333221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1122333193 and 1122333202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122333241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921605 + ... + 922821.

It is an arithmetic number, because the mean of its divisors is an integer number (73050768).

Almost surely, 2^1122333221 is an apocalyptic number.

It is an amenable number.

1122333221 is a deficient number, since it is larger than the sum of its proper divisors (46479067).

1122333221 is a wasteful number, since it uses less digits than its factorization.

1122333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612.

The product of its digits is 432, while the sum is 20.

The square root of 1122333221 is about 33501.2420814512. The cubic root of 1122333221 is about 1039.2194651947.

Adding to 1122333221 its reverse (1223332211), we get a palindrome (2345665432).

It can be divided in two parts, 11223 and 33221, that added together give a palindrome (44444).

The spelling of 1122333221 in words is "one billion, one hundred twenty-two million, three hundred thirty-three thousand, two hundred twenty-one".