220122111222 has 64 divisors (see below), whose sum is σ = 526945896960. Its totient is φ = 67709574432.

The previous prime is 220122111173. The next prime is 220122111227. The reversal of 220122111222 is 222111221022.

It is a happy number.

220122111222 is a `hidden beast` number, since 220 + 1 + 221 + 1 + 1 + 222 = 666.

220122111222 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 a junction number, because it is equal to n+sod(n) for n = 220122111195 and 220122111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122111227) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2385753 + ... + 2476299.

It is an arithmetic number, because the mean of its divisors is an integer number (8233529640).

Almost surely, 2^220122111222 is an apocalyptic number.

220122111222 is an abundant number, since it is smaller than the sum of its proper divisors (306823785738).

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

220122111222 is a wasteful number, since it uses less digits than its factorization.

220122111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94034 (or 94028 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220122111222 its reverse (222111221022), we get a palindrome (442233332244).

The spelling of 220122111222 in words is "two hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".