12030221212 has 12 divisors (see below), whose sum is σ = 21732012736. Its totient is φ = 5821074720.

The previous prime is 12030221197. The next prime is 12030221213. The reversal of 12030221212 is 21212203021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030221213) 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, 48508833 + ... + 48509080.

Almost surely, 2^12030221212 is an apocalyptic number.

It is an amenable number.

12030221212 is a deficient number, since it is larger than the sum of its proper divisors (9701791524).

12030221212 is a wasteful number, since it uses less digits than its factorization.

12030221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97017948 (or 97017946 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12030221212 its reverse (21212203021), we get a palindrome (33242424233).

The spelling of 12030221212 in words is "twelve billion, thirty million, two hundred twenty-one thousand, two hundred twelve".