221003303222020 has 96 divisors (see below), whose sum is σ = 523947335829120. Its totient is φ = 77565444956160.

The previous prime is 221003303221927. The next prime is 221003303222083. The reversal of 221003303222020 is 20222303300122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 221003303221982 and 221003303222000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11272819 + ... + 23855461.

It is an arithmetic number, because the mean of its divisors is an integer number (5457784748220).

Almost surely, 2^{221003303222020} is an apocalyptic number.

221003303222020 is a gapful number since it is divisible by the number (20) 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 221003303222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261973667914560).

221003303222020 is an abundant number, since it is smaller than the sum of its proper divisors (302944032607100).

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

221003303222020 is a wasteful number, since it uses less digits than its factorization.

221003303222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12585445 (or 12585443 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 221003303222020 its reverse (20222303300122), we get a palindrome (241225606522142).

The spelling of 221003303222020 in words is "two hundred twenty-one trillion, three billion, three hundred three million, two hundred twenty-two thousand, twenty".