12021133112 has 16 divisors (see below), whose sum is σ = 22541358840. Its totient is φ = 6010104096.

The previous prime is 12021133081. The next prime is 12021133127. The reversal of 12021133112 is 21133112021.

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, 69038 + ... + 169730.

Almost surely, 2^12021133112 is an apocalyptic number.

It is an amenable number.

12021133112 is a deficient number, since it is larger than the sum of its proper divisors (10520225728).

12021133112 is a wasteful number, since it uses less digits than its factorization.

12021133112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115622 (or 115618 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12021133112 its reverse (21133112021), we get a palindrome (33154245133).

The spelling of 12021133112 in words is "twelve billion, twenty-one million, one hundred thirty-three thousand, one hundred twelve".