12204013212 has 36 divisors (see below), whose sum is σ = 30958842096. Its totient is φ = 4053524160.

The previous prime is 12204013181. The next prime is 12204013259. The reversal of 12204013212 is 21231040221.

It is a happy number.

12204013212 is a `hidden beast` number, since 1 + 220 + 401 + 32 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 593088 + ... + 613319.

It is an arithmetic number, because the mean of its divisors is an integer number (859967836).

Almost surely, 2^12204013212 is an apocalyptic number.

12204013212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12204013212 is an abundant number, since it is smaller than the sum of its proper divisors (18754828884).

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

12204013212 is a wasteful number, since it uses less digits than its factorization.

12204013212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206698 (or 1206693 counting only the distinct ones).

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

Adding to 12204013212 its reverse (21231040221), we get a palindrome (33435053433).

The spelling of 12204013212 in words is "twelve billion, two hundred four million, thirteen thousand, two hundred twelve".