112121020012 has 24 divisors (see below), whose sum is σ = 196461316800. Its totient is φ = 55989259536.

The previous prime is 112121019991. The next prime is 112121020013. The reversal of 112121020012 is 210020121211.

It is a super-2 number, since 2×112121020012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112121019974 and 112121020001.

It is not an unprimeable number, because it can be changed into a prime (112121020013) 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 7 ways as a sum of consecutive naturals, for example, 19810039 + ... + 19815697.

It is an arithmetic number, because the mean of its divisors is an integer number (8185888200).

Almost surely, 2^112121020012 is an apocalyptic number.

It is an amenable number.

112121020012 is a deficient number, since it is larger than the sum of its proper divisors (84340296788).

112121020012 is a wasteful number, since it uses less digits than its factorization.

112121020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11085 (or 11083 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112121020012 its reverse (210020121211), we get a palindrome (322141141223).

The spelling of 112121020012 in words is "one hundred twelve billion, one hundred twenty-one million, twenty thousand, twelve".