22220110101222 has 128 divisors (see below), whose sum is σ = 55147573094400. Its totient is φ = 6573987475200.

The previous prime is 22220110101221. The next prime is 22220110101223. The reversal of 22220110101222 is 22210101102222.

It is a happy number.

22220110101222 is a `hidden beast` number, since 222 + 201 + 10 + 10 + 1 + 222 = 666.

It is an interprime number because it is at equal distance from previous prime (22220110101221) and next prime (22220110101223).

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 = 22220110101195 and 22220110101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220110101221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10445472 + ... + 12391452.

It is an arithmetic number, because the mean of its divisors is an integer number (430840414800).

Almost surely, 2^{22220110101222} is an apocalyptic number.

22220110101222 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 22220110101222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27573786547200).

22220110101222 is an abundant number, since it is smaller than the sum of its proper divisors (32927462993178).

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

22220110101222 is a wasteful number, since it uses less digits than its factorization.

22220110101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946459 (or 1946453 counting only the distinct ones).

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

Adding to 22220110101222 its reverse (22210101102222), we get a palindrome (44430211203444).

The spelling of 22220110101222 in words is "twenty-two trillion, two hundred twenty billion, one hundred ten million, one hundred one thousand, two hundred twenty-two".