1331200212 has 12 divisors (see below), whose sum is σ = 3106133856. Its totient is φ = 443733400.

The previous prime is 1331200207. The next prime is 1331200217. The reversal of 1331200212 is 2120021331.

It is an interprime number because it is at equal distance from previous prime (1331200207) and next prime (1331200217).

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

It is a junction number, because it is equal to n+sod(n) for n = 1331200191 and 1331200200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331200217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55466664 + ... + 55466687.

It is an arithmetic number, because the mean of its divisors is an integer number (258844488).

Almost surely, 2^1331200212 is an apocalyptic number.

1331200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331200212 is an abundant number, since it is smaller than the sum of its proper divisors (1774933644).

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

1331200212 is a wasteful number, since it uses less digits than its factorization.

1331200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110933358 (or 110933356 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1331200212 is about 36485.6165084270. The cubic root of 1331200212 is about 1100.0551520557.

Adding to 1331200212 its reverse (2120021331), we get a palindrome (3451221543).

The spelling of 1331200212 in words is "one billion, three hundred thirty-one million, two hundred thousand, two hundred twelve".