12015413212 has 24 divisors (see below), whose sum is σ = 23261599872. Its totient is φ = 5384626800.

The previous prime is 12015413209. The next prime is 12015413213. The reversal of 12015413212 is 21231451021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12015413213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1919958 + ... + 1926205.

It is an arithmetic number, because the mean of its divisors is an integer number (969233328).

Almost surely, 2^12015413212 is an apocalyptic number.

It is an amenable number.

12015413212 is a deficient number, since it is larger than the sum of its proper divisors (11246186660).

12015413212 is a wasteful number, since it uses less digits than its factorization.

12015413212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846249 (or 3846247 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 12015413212 its reverse (21231451021), we get a palindrome (33246864233).

The spelling of 12015413212 in words is "twelve billion, fifteen million, four hundred thirteen thousand, two hundred twelve".