220221200100220 has 48 divisors (see below), whose sum is σ = 504986775302016. Its totient is φ = 80004241800000.

The previous prime is 220221200100211. The next prime is 220221200100257. The reversal of 220221200100220 is 22001002122022.

It is a super-2 number, since 2×220221200100220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220221200100194 and 220221200100203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475984506 + ... + 476446945.

It is an arithmetic number, because the mean of its divisors is an integer number (10520557818792).

Almost surely, 2^{220221200100220} is an apocalyptic number.

220221200100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221200100220 is an abundant number, since it is smaller than the sum of its proper divisors (284765575201796).

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

220221200100220 is a wasteful number, since it uses less digits than its factorization.

220221200100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952432522 (or 952432520 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220221200100220 its reverse (22001002122022), we get a palindrome (242222202222242).

The spelling of 220221200100220 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred million, one hundred thousand, two hundred twenty".