4021215130780 has 192 divisors, whose sum is σ = 9158933790720. Its totient is φ = 1478178720000.

The previous prime is 4021215130679. The next prime is 4021215130783. The reversal of 4021215130780 is 870315121204.

It is a super-2 number, since 2×4021215130780² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021215130783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1410456355 + ... + 1410459205.

It is an arithmetic number, because the mean of its divisors is an integer number (47702780160).

Almost surely, 2^{4021215130780} 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 4021215130780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4579466895360).

4021215130780 is an abundant number, since it is smaller than the sum of its proper divisors (5137718659940).

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

4021215130780 is a wasteful number, since it uses less digits than its factorization.

4021215130780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 4021215130780 in words is "four trillion, twenty-one billion, two hundred fifteen million, one hundred thirty thousand, seven hundred eighty".