12111003212 has 24 divisors (see below), whose sum is σ = 26424007680. Its totient is φ = 4718572560.

The previous prime is 12111003209. The next prime is 12111003271. The reversal of 12111003212 is 21230011121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19660412 + ... + 19661027.

It is an arithmetic number, because the mean of its divisors is an integer number (1101000320).

Almost surely, 2^12111003212 is an apocalyptic number.

It is an amenable number.

12111003212 is an abundant number, since it is smaller than the sum of its proper divisors (14313004468).

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

12111003212 is a wasteful number, since it uses less digits than its factorization.

12111003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39321461 (or 39321459 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12111003212 its reverse (21230011121), we get a palindrome (33341014333).

The spelling of 12111003212 in words is "twelve billion, one hundred eleven million, three thousand, two hundred twelve".