221032002220 has 24 divisors (see below), whose sum is σ = 480172971600. Its totient is φ = 85364083392.

The previous prime is 221032002209. The next prime is 221032002277. The reversal of 221032002220 is 22200230122.

221032002220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221032002194 and 221032002203.

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 7 ways as a sum of consecutive naturals, for example, 190544250 + ... + 190545409.

It is an arithmetic number, because the mean of its divisors is an integer number (20007207150).

Almost surely, 2^221032002220 is an apocalyptic number.

221032002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221032002220 is an abundant number, since it is smaller than the sum of its proper divisors (259140969380).

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

221032002220 is a wasteful number, since it uses less digits than its factorization.

221032002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381089697 (or 381089695 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 221032002220 its reverse (22200230122), we get a palindrome (243232232342).

The spelling of 221032002220 in words is "two hundred twenty-one billion, thirty-two million, two thousand, two hundred twenty".