1331332212 has 24 divisors (see below), whose sum is σ = 3550219456. Its totient is φ = 380380608.

The previous prime is 1331332181. The next prime is 1331332241. The reversal of 1331332212 is 2122331331.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 7924513 + ... + 7924680.

Almost surely, 2^1331332212 is an apocalyptic number.

1331332212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331332212 is an abundant number, since it is smaller than the sum of its proper divisors (2218887244).

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

1331332212 is a wasteful number, since it uses less digits than its factorization.

1331332212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15849207 (or 15849205 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 1331332212 is about 36487.4253956072. The cubic root of 1331332212 is about 1100.0915108441.

Adding to 1331332212 its reverse (2122331331), we get a palindrome (3453663543).

The spelling of 1331332212 in words is "one billion, three hundred thirty-one million, three hundred thirty-two thousand, two hundred twelve".