1020202200 has 144 divisors (see below), whose sum is σ = 3458852280. Its totient is φ = 269460480.

The previous prime is 1020202187. The next prime is 1020202201. The reversal of 1020202200 is 22020201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020202201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 189952 + ... + 195248.

Almost surely, 2^1020202200 is an apocalyptic number.

1020202200 is a gapful number since it is divisible by the number (10) 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 1020202200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729426140).

1020202200 is an abundant number, since it is smaller than the sum of its proper divisors (2438650080).

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

1020202200 is a wasteful number, since it uses less digits than its factorization.

1020202200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426 (or 5414 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1020202200 is about 31940.6042522680. The cubic root of 1020202200 is about 1006.6892212150.

Adding to 1020202200 its reverse (22020201), we get a palindrome (1042222401).

The spelling of 1020202200 in words is "one billion, twenty million, two hundred two thousand, two hundred".