112212220122 has 48 divisors (see below), whose sum is σ = 249815286240. Its totient is φ = 36375980256.

The previous prime is 112212220121. The next prime is 112212220291. The reversal of 112212220122 is 221022212211.

It is a happy number.

112212220122 is a `hidden beast` number, since 112 + 212 + 220 + 122 = 666.

112212220122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 112212220095 and 112212220104.

It is not an unprimeable number, because it can be changed into a prime (112212220121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1412553 + ... + 1489875.

It is an arithmetic number, because the mean of its divisors is an integer number (5204485130).

Almost surely, 2^112212220122 is an apocalyptic number.

112212220122 is an abundant number, since it is smaller than the sum of its proper divisors (137603066118).

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

112212220122 is a wasteful number, since it uses less digits than its factorization.

112212220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79547 (or 79544 counting only the distinct ones).

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

Adding to 112212220122 its reverse (221022212211), we get a palindrome (333234432333).

The spelling of 112212220122 in words is "one hundred twelve billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty-two".