202022220 has 192 divisors, whose sum is σ = 632935296. Its totient is φ = 47923200.

The previous prime is 202022173. The next prime is 202022221. The reversal of 202022220 is 22220202.

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 = 202022196 and 202022205.

It is not an unprimeable number, because it can be changed into a prime (202022221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2000170 + ... + 2000270.

It is an arithmetic number, because the mean of its divisors is an integer number (3296538).

Almost surely, 2^202022220 is an apocalyptic number.

202022220 is a gapful number since it is divisible by the number (20) 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 202022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316467648).

202022220 is an abundant number, since it is smaller than the sum of its proper divisors (430913076).

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

202022220 is a wasteful number, since it uses less digits than its factorization.

202022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 202022220 is about 14213.4520789286. The cubic root of 202022220 is about 586.7679440913.

Adding to 202022220 its reverse (22220202), we get a palindrome (224242422).

It can be divided in two parts, 20202 and 2220, that added together give a palindrome (22422).

The spelling of 202022220 in words is "two hundred two million, twenty-two thousand, two hundred twenty".