221101000220 has 48 divisors (see below), whose sum is σ = 472263372000. Its totient is φ = 86926391040.

The previous prime is 221101000217. The next prime is 221101000249. The reversal of 221101000220 is 22000101122.

It is a happy number.

221101000220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8895410 + ... + 8920230.

It is an arithmetic number, because the mean of its divisors is an integer number (9838820250).

Almost surely, 2^221101000220 is an apocalyptic number.

221101000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221101000220 is an abundant number, since it is smaller than the sum of its proper divisors (251162371780).

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

221101000220 is a wasteful number, since it uses less digits than its factorization.

221101000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32438 (or 32436 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221101000220 its reverse (22000101122), we get a palindrome (243101101342).

The spelling of 221101000220 in words is "two hundred twenty-one billion, one hundred one million, two hundred twenty", and thus it is an aban number.