12132001212 has 12 divisors (see below), whose sum is σ = 28308002856. Its totient is φ = 4044000400.

The previous prime is 12132001207. The next prime is 12132001213. The reversal of 12132001212 is 21210023121.

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 = 12132001191 and 12132001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132001213) 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, 505500039 + ... + 505500062.

It is an arithmetic number, because the mean of its divisors is an integer number (2359000238).

Almost surely, 2^12132001212 is an apocalyptic number.

12132001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12132001212 is an abundant number, since it is smaller than the sum of its proper divisors (16176001644).

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

12132001212 is a wasteful number, since it uses less digits than its factorization.

12132001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011000108 (or 1011000106 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12132001212 its reverse (21210023121), we get a palindrome (33342024333).

The spelling of 12132001212 in words is "twelve billion, one hundred thirty-two million, one thousand, two hundred twelve".