112212222122220 has 384 divisors, whose sum is σ = 355808968123392. Its totient is φ = 26183388672000.

The previous prime is 112212222122207. The next prime is 112212222122233. The reversal of 112212222122220 is 22221222212211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (112212222122207) and next prime (112212222122233).

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 2991748707 + ... + 2991786213.

It is an arithmetic number, because the mean of its divisors is an integer number (926585854488).

Almost surely, 2^{112212222122220} is an apocalyptic number.

112212222122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112212222122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177904484061696).

112212222122220 is an abundant number, since it is smaller than the sum of its proper divisors (243596746001172).

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

112212222122220 is a wasteful number, since it uses less digits than its factorization.

112212222122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38881 (or 38879 counting only the distinct ones).

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

Adding to 112212222122220 its reverse (22221222212211), we get a palindrome (134433444334431).

The spelling of 112212222122220 in words is "one hundred twelve trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty".