1322215212 has 24 divisors (see below), whose sum is σ = 3191554800. Its totient is φ = 425540416.

The previous prime is 1322215207. The next prime is 1322215247. The reversal of 1322215212 is 2125122231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1899387 + ... + 1900082.

It is an arithmetic number, because the mean of its divisors is an integer number (132981450).

Almost surely, 2^1322215212 is an apocalyptic number.

1322215212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1322215212 is an abundant number, since it is smaller than the sum of its proper divisors (1869339588).

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

1322215212 is a wasteful number, since it uses less digits than its factorization.

1322215212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799505 (or 3799503 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 1322215212 is about 36362.2773214220. The cubic root of 1322215212 is about 1097.5746043726.

Adding to 1322215212 its reverse (2125122231), we get a palindrome (3447337443).

The spelling of 1322215212 in words is "one billion, three hundred twenty-two million, two hundred fifteen thousand, two hundred twelve".