12028683021 has 8 divisors (see below), whose sum is σ = 16050576864. Its totient is φ = 8012955600.

The previous prime is 12028683019. The next prime is 12028683049. The reversal of 12028683021 is 12038682021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12028683021 - 2¹ = 12028683019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028683721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1537051 + ... + 1544856.

It is an arithmetic number, because the mean of its divisors is an integer number (2006322108).

Almost surely, 2^12028683021 is an apocalyptic number.

It is an amenable number.

12028683021 is a deficient number, since it is larger than the sum of its proper divisors (4021893843).

12028683021 is a wasteful number, since it uses less digits than its factorization.

12028683021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083211.

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 12028683021 in words is "twelve billion, twenty-eight million, six hundred eighty-three thousand, twenty-one".