22110111112122 has 48 divisors (see below), whose sum is σ = 52260576619680. Its totient is φ = 6699993415200.

The previous prime is 22110111112121. The next prime is 22110111112139. The reversal of 22110111112122 is 22121111101122.

It is a happy number.

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 = 22110111112095 and 22110111112104.

It is not an unprimeable number, because it can be changed into a prime (22110111112121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60411297 + ... + 60776187.

It is an arithmetic number, because the mean of its divisors is an integer number (1088762012910).

Almost surely, 2^{22110111112122} is an apocalyptic number.

22110111112122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22110111112122 is an abundant number, since it is smaller than the sum of its proper divisors (30150465507558).

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

22110111112122 is a wasteful number, since it uses less digits than its factorization.

22110111112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670939 (or 670936 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22110111112122 its reverse (22121111101122), we get a palindrome (44231222213244).

The spelling of 22110111112122 in words is "twenty-two trillion, one hundred ten billion, one hundred eleven million, one hundred twelve thousand, one hundred twenty-two".