220021332210 has 128 divisors (see below), whose sum is σ = 607302489600. Its totient is φ = 56616779520.

The previous prime is 220021332197. The next prime is 220021332277. The reversal of 220021332210 is 12233120022.

220021332210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 63 ways as a sum of consecutive naturals, for example, 15629475 + ... + 15643545.

It is an arithmetic number, because the mean of its divisors is an integer number (4744550700).

Almost surely, 2^220021332210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220021332210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303651244800).

220021332210 is an abundant number, since it is smaller than the sum of its proper divisors (387281157390).

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

220021332210 is a wasteful number, since it uses less digits than its factorization.

220021332210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16113 (or 16107 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 220021332210 its reverse (12233120022), we get a palindrome (232254452232).

The spelling of 220021332210 in words is "two hundred twenty billion, twenty-one million, three hundred thirty-two thousand, two hundred ten".