1020200220 has 72 divisors (see below), whose sum is σ = 3332661696. Its totient is φ = 251125632.

The previous prime is 1020200219. The next prime is 1020200221. The reversal of 1020200220 is 220020201.

1020200220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1020200219) and next prime (1020200221).

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 (1020200221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215652 + ... + 220331.

It is an arithmetic number, because the mean of its divisors is an integer number (46286968).

Almost surely, 2^1020200220 is an apocalyptic number.

1020200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020200220 is an abundant number, since it is smaller than the sum of its proper divisors (2312461476).

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

1020200220 is a wasteful number, since it uses less digits than its factorization.

1020200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436011 (or 436006 counting only the distinct ones).

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

The square root of 1020200220 is about 31940.5732572225. The cubic root of 1020200220 is about 1006.6885699565.

Adding to 1020200220 its reverse (220020201), we get a palindrome (1240220421).

The spelling of 1020200220 in words is "one billion, twenty million, two hundred thousand, two hundred twenty".