302122020 has 192 divisors, whose sum is σ = 930940416. Its totient is φ = 72990720.

The previous prime is 302122019. The next prime is 302122031. The reversal of 302122020 is 20221203.

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 = 302121987 and 302122005.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3114612 + ... + 3114708.

It is an arithmetic number, because the mean of its divisors is an integer number (4848648).

Almost surely, 2^302122020 is an apocalyptic number.

302122020 is a gapful number since it is divisible by the number (30) 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 302122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465470208).

302122020 is an abundant number, since it is smaller than the sum of its proper divisors (628818396).

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

302122020 is a wasteful number, since it uses less digits than its factorization.

302122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 302122020 is about 17381.6575734307. The cubic root of 302122020 is about 671.0076321220.

Adding to 302122020 its reverse (20221203), we get a palindrome (322343223).

The spelling of 302122020 in words is "three hundred two million, one hundred twenty-two thousand, twenty".