1321133222 has 16 divisors (see below), whose sum is σ = 2055421440. Its totient is φ = 636112512.

The previous prime is 1321133221. The next prime is 1321133237. The reversal of 1321133222 is 2223311231.

It is a junction number, because it is equal to n+sod(n) for n = 1321133194 and 1321133203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321133221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7523 + ... + 51950.

It is an arithmetic number, because the mean of its divisors is an integer number (128463840).

Almost surely, 2^1321133222 is an apocalyptic number.

1321133222 is a deficient number, since it is larger than the sum of its proper divisors (734288218).

1321133222 is a wasteful number, since it uses less digits than its factorization.

1321133222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59887.

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

The square root of 1321133222 is about 36347.3963579236. The cubic root of 1321133222 is about 1097.2751350131.

Adding to 1321133222 its reverse (2223311231), we get a palindrome (3544444453).

The spelling of 1321133222 in words is "one billion, three hundred twenty-one million, one hundred thirty-three thousand, two hundred twenty-two".