12021082712 has 8 divisors (see below), whose sum is σ = 22539530100. Its totient is φ = 6010541352.

The previous prime is 12021082679. The next prime is 12021082771. The reversal of 12021082712 is 21728012021.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751317662 + ... + 751317677.

Almost surely, 2^12021082712 is an apocalyptic number.

It is an amenable number.

12021082712 is a deficient number, since it is larger than the sum of its proper divisors (10518447388).

12021082712 is a wasteful number, since it uses less digits than its factorization.

12021082712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502635345 (or 1502635341 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 12021082712 its reverse (21728012021), we get a palindrome (33749094733).

The spelling of 12021082712 in words is "twelve billion, twenty-one million, eighty-two thousand, seven hundred twelve".