222222001100022 has 320 divisors, whose sum is σ = 668682269798400. Its totient is φ = 53410426211520.

The previous prime is 222222001099981. The next prime is 222222001100069. The reversal of 222222001100022 is 220001100222222.

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 = 222222001099968 and 222222001100004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 711322 + ... + 21093837.

It is an arithmetic number, because the mean of its divisors is an integer number (2089632093120).

Almost surely, 2^{222222001100022} is an apocalyptic number.

222222001100022 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 222222001100022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334341134899200).

222222001100022 is an abundant number, since it is smaller than the sum of its proper divisors (446460268698378).

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

222222001100022 is a wasteful number, since it uses less digits than its factorization.

222222001100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21805253 (or 21805244 counting only the distinct ones).

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

Adding to 222222001100022 its reverse (220001100222222), we get a palindrome (442223101322244).

The spelling of 222222001100022 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one million, one hundred thousand, twenty-two".