2112122122012 has 48 divisors (see below), whose sum is σ = 4338891422208. Its totient is φ = 880633339200.

The previous prime is 2112122121983. The next prime is 2112122122037. The reversal of 2112122122012 is 2102212212112.

It is a super-2 number, since 2×2112122122012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 9700137 + ... + 9915487.

It is an arithmetic number, because the mean of its divisors is an integer number (90393571296).

Almost surely, 2^{2112122122012} is an apocalyptic number.

It is an amenable number.

2112122122012 is an abundant number, since it is smaller than the sum of its proper divisors (2226769300196).

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

2112122122012 is a wasteful number, since it uses less digits than its factorization.

2112122122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224866 (or 224864 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2112122122012 its reverse (2102212212112), we get a palindrome (4214334334124).

The spelling of 2112122122012 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, twelve".