4221060520 has 64 divisors (see below), whose sum is σ = 10036612800. Its totient is φ = 1593262080.

The previous prime is 4221060497. The next prime is 4221060523. The reversal of 4221060520 is 250601224.

4221060520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4221060491 and 4221060500.

It is not an unprimeable number, because it can be changed into a prime (4221060523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184515 + ... + 206125.

It is an arithmetic number, because the mean of its divisors is an integer number (156822075).

Almost surely, 2^4221060520 is an apocalyptic number.

4221060520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221060520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5018306400).

4221060520 is an abundant number, since it is smaller than the sum of its proper divisors (5815552280).

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

4221060520 is a wasteful number, since it uses less digits than its factorization.

4221060520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21898 (or 21894 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4221060520 is about 64969.6892404450. The cubic root of 4221060520 is about 1616.1209482474.

Adding to 4221060520 its reverse (250601224), we get a palindrome (4471661744).

The spelling of 4221060520 in words is "four billion, two hundred twenty-one million, sixty thousand, five hundred twenty".