220021000010 has 48 divisors (see below), whose sum is σ = 460741079880. Its totient is φ = 75428559360.

The previous prime is 220021000009. The next prime is 220021000021. The reversal of 220021000010 is 10000120022.

It can be written as a sum of positive squares in 4 ways, for example, as 42201074041 + 177819925969 = 205429^2 + 421687^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8827646 + ... + 8852534.

Almost surely, 2^220021000010 is an apocalyptic number.

220021000010 is an abundant number, since it is smaller than the sum of its proper divisors (240720079870).

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

220021000010 is a wasteful number, since it uses less digits than its factorization.

220021000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42951 (or 42944 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 220021000010 its reverse (10000120022), we get a palindrome (230021120032).

The spelling of 220021000010 in words is "two hundred twenty billion, twenty-one million, ten", and thus it is an aban number.