12021160512 has 56 divisors (see below), whose sum is σ = 31817372992. Its totient is φ = 4005619200.

The previous prime is 12021160493. The next prime is 12021160537. The reversal of 12021160512 is 21506112021.

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, 618462 + ... + 637602.

Almost surely, 2^12021160512 is an apocalyptic number.

12021160512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12021160512 is an abundant number, since it is smaller than the sum of its proper divisors (19796212480).

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

12021160512 is a wasteful number, since it uses less digits than its factorization.

12021160512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22427 (or 22417 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 12021160512 its reverse (21506112021), we get a palindrome (33527272533).

The spelling of 12021160512 in words is "twelve billion, twenty-one million, one hundred sixty thousand, five hundred twelve".