22122121122222 has 16 divisors (see below), whose sum is σ = 48266446084992. Its totient is φ = 6703673067320.

The previous prime is 22122121122221. The next prime is 22122121122229. The reversal of 22122121122222 is 22222112122122.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22122121122192 and 22122121122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122121122221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167591826618 + ... + 167591826749.

It is an arithmetic number, because the mean of its divisors is an integer number (3016652880312).

Almost surely, 2^{22122121122222} is an apocalyptic number.

22122121122222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22122121122222 is an abundant number, since it is smaller than the sum of its proper divisors (26144324962770).

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

22122121122222 is a wasteful number, since it uses less digits than its factorization.

22122121122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335183653383.

The product of its digits is 1024, while the sum is 24.

Adding to 22122121122222 its reverse (22222112122122), we get a palindrome (44344233244344).

The spelling of 22122121122222 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".