112211121012 has 48 divisors (see below), whose sum is σ = 267103459392. Its totient is φ = 36656305920.

The previous prime is 112211120999. The next prime is 112211121019. The reversal of 112211121012 is 210121112211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 112211120982 and 112211121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112211121019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270414 + ... + 545477.

It is an arithmetic number, because the mean of its divisors is an integer number (5564655404).

Almost surely, 2^112211121012 is an apocalyptic number.

112211121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112211121012 is an abundant number, since it is smaller than the sum of its proper divisors (154892338380).

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

112211121012 is a wasteful number, since it uses less digits than its factorization.

112211121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816128 (or 816126 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 112211121012 its reverse (210121112211), we get a palindrome (322332233223).

The spelling of 112211121012 in words is "one hundred twelve billion, two hundred eleven million, one hundred twenty-one thousand, twelve".