302220220 has 48 divisors (see below), whose sum is σ = 673989120. Its totient is φ = 113439744.

The previous prime is 302220187. The next prime is 302220227. The reversal of 302220220 is 22022203.

It is a super-2 number, since 2×302220220² = 182674122753696800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 302220220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302220227) 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, 133861 + ... + 136099.

It is an arithmetic number, because the mean of its divisors is an integer number (14041440).

Almost surely, 2^302220220 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 302220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336994560).

302220220 is an abundant number, since it is smaller than the sum of its proper divisors (371768900).

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

302220220 is a wasteful number, since it uses less digits than its factorization.

302220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 302220220 is about 17384.4821608238. The cubic root of 302220220 is about 671.0803243978.

Adding to 302220220 its reverse (22022203), we get a palindrome (324242423).

The spelling of 302220220 in words is "three hundred two million, two hundred twenty thousand, two hundred twenty".