1213321422 has 16 divisors (see below), whose sum is σ = 2427010560. Its totient is φ = 404379192.

The previous prime is 1213321397. The next prime is 1213321429. The reversal of 1213321422 is 2241233121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213321429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47203 + ... + 68225.

It is an arithmetic number, because the mean of its divisors is an integer number (151688160).

Almost surely, 2^1213321422 is an apocalyptic number.

1213321422 is an abundant number, since it is smaller than the sum of its proper divisors (1213689138).

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

1213321422 is a wasteful number, since it uses less digits than its factorization.

1213321422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30647.

The product of its digits is 576, while the sum is 21.

The square root of 1213321422 is about 34832.7636285150. The cubic root of 1213321422 is about 1066.5763638179.

Adding to 1213321422 its reverse (2241233121), we get a palindrome (3454554543).

The spelling of 1213321422 in words is "one billion, two hundred thirteen million, three hundred twenty-one thousand, four hundred twenty-two".