220022221122 has 96 divisors (see below), whose sum is σ = 528645761280. Its totient is φ = 65578817760.

The previous prime is 220022221063. The next prime is 220022221123. The reversal of 220022221122 is 221122220022.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 220022221095 and 220022221104.

It is not an unprimeable number, because it can be changed into a prime (220022221123) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3701029 + ... + 3760007.

It is an arithmetic number, because the mean of its divisors is an integer number (5506726680).

Almost surely, 2^220022221122 is an apocalyptic number.

220022221122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 220022221122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264322880640).

220022221122 is an abundant number, since it is smaller than the sum of its proper divisors (308623540158).

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

220022221122 is a wasteful number, since it uses less digits than its factorization.

220022221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59308 (or 59305 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220022221122 its reverse (221122220022), we get a palindrome (441144441144).

It can be divided in two parts, 220022 and 221122, that added together give a palindrome (441144).

The spelling of 220022221122 in words is "two hundred twenty billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-two".