2112112646546 has 64 divisors (see below), whose sum is σ = 3650813337600. Its totient is φ = 897717865344.

The previous prime is 2112112646543. The next prime is 2112112646549. The reversal of 2112112646546 is 6456462112112.

It is an interprime number because it is at equal distance from previous prime (2112112646543) and next prime (2112112646549).

It is a super-2 number, since 2×2112112646546² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112112646543) 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 31 ways as a sum of consecutive naturals, for example, 1304577725 + ... + 1304579343.

It is an arithmetic number, because the mean of its divisors is an integer number (57043958400).

Almost surely, 2^{2112112646546} is an apocalyptic number.

2112112646546 is a deficient number, since it is larger than the sum of its proper divisors (1538700691054).

2112112646546 is a wasteful number, since it uses less digits than its factorization.

2112112646546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191.

The product of its digits is 138240, while the sum is 41.

Adding to 2112112646546 its reverse (6456462112112), we get a palindrome (8568574758658).

The spelling of 2112112646546 in words is "two trillion, one hundred twelve billion, one hundred twelve million, six hundred forty-six thousand, five hundred forty-six".