5021220 has 48 divisors (see below), whose sum is σ = 14333760. Its totient is φ = 1312896.

The previous prime is 5021213. The next prime is 5021221. The reversal of 5021220 is 221205.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 5021196 and 5021205.

It is not an unprimeable number, because it can be changed into a prime (5021221) 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, 2391 + ... + 3969.

It is an arithmetic number, because the mean of its divisors is an integer number (298620).

Almost surely, 2^5021220 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 5021220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7166880).

5021220 is an abundant number, since it is smaller than the sum of its proper divisors (9312540).

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

5021220 is a wasteful number, since it uses less digits than its factorization.

5021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 5021220 is about 2240.8078900254. The cubic root of 5021220 is about 171.2391578551.

Adding to 5021220 its reverse (221205), we get a palindrome (5242425).

The spelling of 5021220 in words is "five million, twenty-one thousand, two hundred twenty".