1121212322 has 16 divisors (see below), whose sum is σ = 1824184152. Its totient is φ = 514759680.

The previous prime is 1121212321. The next prime is 1121212343. The reversal of 1121212322 is 2232121211.

It can be written as a sum of positive squares in 4 ways, for example, as 1058786521 + 62425801 = 32539^2 + 7901^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1121212322.

It is not an unprimeable number, because it can be changed into a prime (1121212321) 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, 400763 + ... + 403550.

Almost surely, 2^1121212322 is an apocalyptic number.

1121212322 is a deficient number, since it is larger than the sum of its proper divisors (702971830).

1121212322 is a wasteful number, since it uses less digits than its factorization.

1121212322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804373.

The product of its digits is 96, while the sum is 17.

The square root of 1121212322 is about 33484.5086868540. The cubic root of 1121212322 is about 1038.8733861386.

Adding to 1121212322 its reverse (2232121211), we get a palindrome (3353333533).

The spelling of 1121212322 in words is "one billion, one hundred twenty-one million, two hundred twelve thousand, three hundred twenty-two".