12021082928 has 20 divisors (see below), whose sum is σ = 23325476568. Its totient is φ = 6001605120.

The previous prime is 12021082903. The next prime is 12021082933. The reversal of 12021082928 is 82928012021.

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, 547418 + ... + 568953.

Almost surely, 2^12021082928 is an apocalyptic number.

It is an amenable number.

12021082928 is a deficient number, since it is larger than the sum of its proper divisors (11304393640).

12021082928 is a wasteful number, since it uses less digits than its factorization.

12021082928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117052 (or 1117046 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

Adding to 12021082928 its reverse (82928012021), we get a palindrome (94949094949).

The spelling of 12021082928 in words is "twelve billion, twenty-one million, eighty-two thousand, nine hundred twenty-eight".