221120002000220 has 96 divisors (see below), whose sum is σ = 482524371000000. Its totient is φ = 85014522349568.

The previous prime is 221120002000207. The next prime is 221120002000237. The reversal of 221120002000220 is 22000200021122.

It is a junction number, because it is equal to n+sod(n) for n = 221120002000195 and 221120002000204.

It is a congruent number.

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, 200560031 + ... + 201659529.

It is an arithmetic number, because the mean of its divisors is an integer number (5026295531250).

Almost surely, 2^{221120002000220} is an apocalyptic number.

221120002000220 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 221120002000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241262185500000).

221120002000220 is an abundant number, since it is smaller than the sum of its proper divisors (261404368999780).

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

221120002000220 is a wasteful number, since it uses less digits than its factorization.

221120002000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101095 (or 1101093 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221120002000220 its reverse (22000200021122), we get a palindrome (243120202021342).

The spelling of 221120002000220 in words is "two hundred twenty-one trillion, one hundred twenty billion, two million, two hundred twenty", and thus it is an aban number.