200220001020 has 144 divisors (see below), whose sum is σ = 663012185472. Its totient is φ = 48609745920.

The previous prime is 200220000931. The next prime is 200220001021. The reversal of 200220001020 is 20100022002.

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

It is a junction number, because it is equal to n+sod(n) for n = 200220000993 and 200220001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220001021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 415236 + ... + 756875.

It is an arithmetic number, because the mean of its divisors is an integer number (4604251288).

Almost surely, 2^200220001020 is an apocalyptic number.

200220001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200220001020 is an abundant number, since it is smaller than the sum of its proper divisors (462792184452).

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

200220001020 is a wasteful number, since it uses less digits than its factorization.

200220001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172212 (or 1172207 counting only the distinct ones).

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

Adding to 200220001020 its reverse (20100022002), we get a palindrome (220320023022).

The spelling of 200220001020 in words is "two hundred billion, two hundred twenty million, one thousand, twenty".