20202200220 has 24 divisors (see below), whose sum is σ = 56566160784. Its totient is φ = 5387253376.

The previous prime is 20202200219. The next prime is 20202200233. The reversal of 20202200220 is 2200220202.

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 = 20202200196 and 20202200205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168351609 + ... + 168351728.

It is an arithmetic number, because the mean of its divisors is an integer number (2356923366).

Almost surely, 2^20202200220 is an apocalyptic number.

20202200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202200220 is an abundant number, since it is smaller than the sum of its proper divisors (36363960564).

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

20202200220 is a wasteful number, since it uses less digits than its factorization.

20202200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336703349 (or 336703347 counting only the distinct ones).

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

Adding to 20202200220 its reverse (2200220202), we get a palindrome (22402420422).

The spelling of 20202200220 in words is "twenty billion, two hundred two million, two hundred thousand, two hundred twenty".