12021031112 has 32 divisors (see below), whose sum is σ = 23814000000. Its totient is φ = 5672985408.

The previous prime is 12021031103. The next prime is 12021031147. The reversal of 12021031112 is 21113012021.

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, 106112 + ... + 187887.

It is an arithmetic number, because the mean of its divisors is an integer number (744187500).

Almost surely, 2^12021031112 is an apocalyptic number.

It is an amenable number.

12021031112 is a deficient number, since it is larger than the sum of its proper divisors (11792968888).

12021031112 is a wasteful number, since it uses less digits than its factorization.

12021031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294293 (or 294289 counting only the distinct ones).

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

Adding to 12021031112 its reverse (21113012021), we get a palindrome (33134043133).

The spelling of 12021031112 in words is "twelve billion, twenty-one million, thirty-one thousand, one hundred twelve".