4321020220 has 96 divisors (see below), whose sum is σ = 10525406976. Its totient is φ = 1472640000.

The previous prime is 4321020211. The next prime is 4321020257. The reversal of 4321020220 is 220201234.

It is a junction number, because it is equal to n+sod(n) for n = 4321020194 and 4321020203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 936439 + ... + 941041.

It is an arithmetic number, because the mean of its divisors is an integer number (109639656).

Almost surely, 2^4321020220 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 4321020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5262703488).

4321020220 is an abundant number, since it is smaller than the sum of its proper divisors (6204386756).

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

4321020220 is a wasteful number, since it uses less digits than its factorization.

4321020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891 (or 4889 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4321020220 is about 65734.4675189508. The cubic root of 4321020220 is about 1628.7787683444.

Adding to 4321020220 its reverse (220201234), we get a palindrome (4541221454).

The spelling of 4321020220 in words is "four billion, three hundred twenty-one million, twenty thousand, two hundred twenty".