1331212332 has 24 divisors (see below), whose sum is σ = 3109728496. Its totient is φ = 443227968.

The previous prime is 1331212301. The next prime is 1331212367. The reversal of 1331212332 is 2332121331.

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

It is a junction number, because it is equal to n+sod(n) for n = 1331212299 and 1331212308.

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, 52723 + ... + 73770.

Almost surely, 2^1331212332 is an apocalyptic number.

1331212332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331212332 is an abundant number, since it is smaller than the sum of its proper divisors (1778516164).

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

1331212332 is a wasteful number, since it uses less digits than its factorization.

1331212332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127377 (or 127375 counting only the distinct ones).

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

The square root of 1331212332 is about 36485.7826008981. The cubic root of 1331212332 is about 1100.0584905537.

Adding to 1331212332 its reverse (2332121331), we get a palindrome (3663333663).

The spelling of 1331212332 in words is "one billion, three hundred thirty-one million, two hundred twelve thousand, three hundred thirty-two".