1321442212 has 12 divisors (see below), whose sum is σ = 2314694620. Its totient is φ = 660100896.

The previous prime is 1321442203. The next prime is 1321442219. The reversal of 1321442212 is 2122441231.

It can be written as a sum of positive squares in 2 ways, for example, as 230857636 + 1090584576 = 15194^2 + 33024^2 .

It is not an unprimeable number, because it can be changed into a prime (1321442219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150243 + ... + 158794.

Almost surely, 2^1321442212 is an apocalyptic number.

It is an amenable number.

1321442212 is a deficient number, since it is larger than the sum of its proper divisors (993252408).

1321442212 is a wasteful number, since it uses less digits than its factorization.

1321442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310110 (or 310108 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 1321442212 is about 36351.6466202014. The cubic root of 1321442212 is about 1097.3606728451.

Adding to 1321442212 its reverse (2122441231), we get a palindrome (3443883443).

The spelling of 1321442212 in words is "one billion, three hundred twenty-one million, four hundred forty-two thousand, two hundred twelve".