12021020984 has 32 divisors (see below), whose sum is σ = 25766860800. Its totient is φ = 5150360160.

The previous prime is 12021020971. The next prime is 12021020993. The reversal of 12021020984 is 48902012021.

It is a congruent number.

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, 173777 + ... + 232895.

It is an arithmetic number, because the mean of its divisors is an integer number (805214400).

Almost surely, 2^12021020984 is an apocalyptic number.

12021020984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12021020984 is an abundant number, since it is smaller than the sum of its proper divisors (13745839816).

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

12021020984 is a wasteful number, since it uses less digits than its factorization.

12021020984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62763 (or 62759 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 12021020984 in words is "twelve billion, twenty-one million, twenty thousand, nine hundred eighty-four".