220001001222 has 128 divisors (see below), whose sum is σ = 492666223104. Its totient is φ = 65182537728.

The previous prime is 220001001217. The next prime is 220001001257. The reversal of 220001001222 is 222100100022.

220001001222 is digitally balanced in base 2, because in such base 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 = 220001001198 and 220001001207.

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 63 ways as a sum of consecutive naturals, for example, 26447808 + ... + 26456124.

It is an arithmetic number, because the mean of its divisors is an integer number (3848954868).

Almost surely, 2^220001001222 is an apocalyptic number.

220001001222 is an abundant number, since it is smaller than the sum of its proper divisors (272665221882).

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

220001001222 is a wasteful number, since it uses less digits than its factorization.

220001001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582.

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

Adding to 220001001222 its reverse (222100100022), we get a palindrome (442101101244).

The spelling of 220001001222 in words is "two hundred twenty billion, one million, one thousand, two hundred twenty-two".