1322212668 has 36 divisors (see below), whose sum is σ = 3588864552. Its totient is φ = 377774880.

The previous prime is 1322212667. The next prime is 1322212681. The reversal of 1322212668 is 8662122231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322212663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1123743 + ... + 1124918.

It is an arithmetic number, because the mean of its divisors is an integer number (99690682).

Almost surely, 2^1322212668 is an apocalyptic number.

It is an amenable number.

1322212668 is an abundant number, since it is smaller than the sum of its proper divisors (2266651884).

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

1322212668 is a wasteful number, since it uses less digits than its factorization.

1322212668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248682 (or 2248673 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 1322212668 is about 36362.2423400978. The cubic root of 1322212668 is about 1097.5739004449.

Adding to 1322212668 its reverse (8662122231), we get a palindrome (9984334899).

The spelling of 1322212668 in words is "one billion, three hundred twenty-two million, two hundred twelve thousand, six hundred sixty-eight".