12021203024 has 40 divisors (see below), whose sum is σ = 24560823840. Its totient is φ = 5684059008.

The previous prime is 12021203021. The next prime is 12021203039. The reversal of 12021203024 is 42030212021.

It is a junction number, because it is equal to n+sod(n) for n = 12021202993 and 12021203011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021203021) 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, 136034 + ... + 206270.

It is an arithmetic number, because the mean of its divisors is an integer number (614020596).

Almost surely, 2^12021203024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021203024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12280411920).

12021203024 is an abundant number, since it is smaller than the sum of its proper divisors (12539620816).

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

12021203024 is a wasteful number, since it uses less digits than its factorization.

12021203024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70827 (or 70821 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12021203024 its reverse (42030212021), we get a palindrome (54051415045).

The spelling of 12021203024 in words is "twelve billion, twenty-one million, two hundred three thousand, twenty-four".