2112012220122 has 24 divisors (see below), whose sum is σ = 5229744545376. Its totient is φ = 603432062856.

The previous prime is 2112012220121. The next prime is 2112012220189. The reversal of 2112012220122 is 2210222102112.

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 = 2112012220095 and 2112012220104.

It is not an unprimeable number, because it can be changed into a prime (2112012220121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8381000748 + ... + 8381000999.

It is an arithmetic number, because the mean of its divisors is an integer number (217906022724).

Almost surely, 2^{2112012220122} is an apocalyptic number.

2112012220122 is an abundant number, since it is smaller than the sum of its proper divisors (3117732325254).

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

2112012220122 is a wasteful number, since it uses less digits than its factorization.

2112012220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16762001762 (or 16762001759 counting only the distinct ones).

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

Adding to 2112012220122 its reverse (2210222102112), we get a palindrome (4322234322234).

The spelling of 2112012220122 in words is "two trillion, one hundred twelve billion, twelve million, two hundred twenty thousand, one hundred twenty-two".