12012213030 has 32 divisors (see below), whose sum is σ = 28933408224. Its totient is φ = 3191690496.

The previous prime is 12012213007. The next prime is 12012213043. The reversal of 12012213030 is 3031221021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714447 + ... + 731066.

It is an arithmetic number, because the mean of its divisors is an integer number (904169007).

Almost surely, 2^12012213030 is an apocalyptic number.

12012213030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012213030 is an abundant number, since it is smaller than the sum of its proper divisors (16921195194).

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

12012213030 is a wasteful number, since it uses less digits than its factorization.

12012213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445800.

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

Adding to 12012213030 its reverse (3031221021), we get a palindrome (15043434051).

The spelling of 12012213030 in words is "twelve billion, twelve million, two hundred thirteen thousand, thirty".