1322515212 has 12 divisors (see below), whose sum is σ = 3085868856. Its totient is φ = 440838400.

The previous prime is 1322515199. The next prime is 1322515237. The reversal of 1322515212 is 2125152231.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55104789 + ... + 55104812.

It is an arithmetic number, because the mean of its divisors is an integer number (257155738).

Almost surely, 2^1322515212 is an apocalyptic number.

1322515212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1322515212 is an abundant number, since it is smaller than the sum of its proper divisors (1763353644).

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

1322515212 is a wasteful number, since it uses less digits than its factorization.

1322515212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110209608 (or 110209606 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 1322515212 is about 36366.4022416296. The cubic root of 1322515212 is about 1097.6576083794.

Adding to 1322515212 its reverse (2125152231), we get a palindrome (3447667443).

The spelling of 1322515212 in words is "one billion, three hundred twenty-two million, five hundred fifteen thousand, two hundred twelve".