12021440484042 has 288 divisors, whose sum is σ = 30651421085376. Its totient is φ = 3525917091840.

The previous prime is 12021440484023. The next prime is 12021440484049. The reversal of 12021440484042 is 24048404412021.

12021440484042 is a `hidden beast` number, since 1 + 202 + 1 + 4 + 4 + 0 + 48 + 404 + 2 = 666.

It is a super-2 number, since 2×12021440484042² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12021440483988 and 12021440484006.

It is not an unprimeable number, because it can be changed into a prime (12021440484049) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 419919333 + ... + 419947959.

Almost surely, 2^{12021440484042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021440484042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15325710542688).

12021440484042 is an abundant number, since it is smaller than the sum of its proper divisors (18629980601334).

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

12021440484042 is a wasteful number, since it uses less digits than its factorization.

12021440484042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28896 (or 28873 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

Adding to 12021440484042 its reverse (24048404412021), we get a palindrome (36069844896063).

The spelling of 12021440484042 in words is "twelve trillion, twenty-one billion, four hundred forty million, four hundred eighty-four thousand, forty-two".