1213022322 has 24 divisors (see below), whose sum is σ = 2654240940. Its totient is φ = 400336800.

The previous prime is 1213022311. The next prime is 1213022329. The reversal of 1213022322 is 2232203121.

It can be written as a sum of positive squares in 2 ways, for example, as 939483801 + 273538521 = 30651^2 + 16539^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1213022295 and 1213022304.

It is not an unprimeable number, because it can be changed into a prime (1213022329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331797 + ... + 335432.

Almost surely, 2^1213022322 is an apocalyptic number.

1213022322 is an abundant number, since it is smaller than the sum of its proper divisors (1441218618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213022322 is a wasteful number, since it uses less digits than its factorization.

1213022322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667338 (or 667335 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1213022322 is about 34828.4699922348. The cubic root of 1213022322 is about 1066.4887148235.

Adding to 1213022322 its reverse (2232203121), we get a palindrome (3445225443).

The spelling of 1213022322 in words is "one billion, two hundred thirteen million, twenty-two thousand, three hundred twenty-two".