12032212212 has 72 divisors (see below), whose sum is σ = 30728978280. Its totient is φ = 3969388800.

The previous prime is 12032212207. The next prime is 12032212223. The reversal of 12032212212 is 21221223021.

12032212212 is a `hidden beast` number, since 120 + 322 + 1 + 221 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1125334116 + 10906878096 = 33546^2 + 104436^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6328462 + ... + 6330362.

It is an arithmetic number, because the mean of its divisors is an integer number (426791365).

Almost surely, 2^12032212212 is an apocalyptic number.

12032212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12032212212 is an abundant number, since it is smaller than the sum of its proper divisors (18696766068).

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

12032212212 is a wasteful number, since it uses less digits than its factorization.

12032212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633 (or 3628 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12032212212 its reverse (21221223021), we get a palindrome (33253435233).

The spelling of 12032212212 in words is "twelve billion, thirty-two million, two hundred twelve thousand, two hundred twelve".