12013021112 has 16 divisors (see below), whose sum is σ = 23048238840. Its totient is φ = 5866824096.

The previous prime is 12013021091. The next prime is 12013021121. The reversal of 12013021112 is 21112031021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17460443 + ... + 17461130.

Almost surely, 2^12013021112 is an apocalyptic number.

It is an amenable number.

12013021112 is a deficient number, since it is larger than the sum of its proper divisors (11035217728).

12013021112 is a wasteful number, since it uses less digits than its factorization.

12013021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34921622 (or 34921618 counting only the distinct ones).

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

Adding to 12013021112 its reverse (21112031021), we get a palindrome (33125052133).

Subtracting 12013021112 from its reverse (21112031021), we obtain a palindrome (9099009909).

The spelling of 12013021112 in words is "twelve billion, thirteen million, twenty-one thousand, one hundred twelve".