202003220 has 12 divisors (see below), whose sum is σ = 424206804. Its totient is φ = 80801280.

The previous prime is 202003201. The next prime is 202003247. The reversal of 202003220 is 22300202.

It can be written as a sum of positive squares in 2 ways, for example, as 148742416 + 53260804 = 12196^2 + 7298^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050061 + ... + 5050100.

It is an arithmetic number, because the mean of its divisors is an integer number (35350567).

Almost surely, 2^202003220 is an apocalyptic number.

202003220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202003220 is an abundant number, since it is smaller than the sum of its proper divisors (222203584).

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

202003220 is a wasteful number, since it uses less digits than its factorization.

202003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100170 (or 10100168 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 202003220 is about 14212.7836823052. The cubic root of 202003220 is about 586.7495485233.

Adding to 202003220 its reverse (22300202), we get a palindrome (224303422).

The spelling of 202003220 in words is "two hundred two million, three thousand, two hundred twenty".