221102000220 has 48 divisors (see below), whose sum is σ = 651669056640. Its totient is φ = 55857347136.

The previous prime is 221102000173. The next prime is 221102000387. The reversal of 221102000220 is 22000201122.

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 = 221102000196 and 221102000205.

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, 96973422 + ... + 96975701.

It is an arithmetic number, because the mean of its divisors is an integer number (13576438680).

Almost surely, 2^221102000220 is an apocalyptic number.

221102000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221102000220 is an abundant number, since it is smaller than the sum of its proper divisors (430567056420).

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

221102000220 is a wasteful number, since it uses less digits than its factorization.

221102000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193949154 (or 193949152 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 221102000220 its reverse (22000201122), we get a palindrome (243102201342).

The spelling of 221102000220 in words is "two hundred twenty-one billion, one hundred two million, two hundred twenty", and thus it is an aban number.