2112022212112 has 20 divisors (see below), whose sum is σ = 4094330426860. Its totient is φ = 1055420811648.

The previous prime is 2112022212109. The next prime is 2112022212119. The reversal of 2112022212112 is 2112122202112.

It can be written as a sum of positive squares in 2 ways, for example, as 1067039416576 + 1044982795536 = 1032976^2 + 1022244^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2112022212112.

It is not an unprimeable number, because it can be changed into a prime (2112022212119) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 36863883 + ... + 36921130.

It is an arithmetic number, because the mean of its divisors is an integer number (204716521343).

Almost surely, 2^{2112022212112} is an apocalyptic number.

It is an amenable number.

2112022212112 is a deficient number, since it is larger than the sum of its proper divisors (1982308214748).

2112022212112 is a wasteful number, since it uses less digits than its factorization.

2112022212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73786810 (or 73786804 counting only the distinct ones).

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

Adding to 2112022212112 its reverse (2112122202112), we get a palindrome (4224144414224).

The spelling of 2112022212112 in words is "two trillion, one hundred twelve billion, twenty-two million, two hundred twelve thousand, one hundred twelve".