112121211012 has 24 divisors (see below), whose sum is σ = 264768163296. Its totient is φ = 36923450688.

The previous prime is 112121210959. The next prime is 112121211113. The reversal of 112121211012 is 210112121211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 112121210982 and 112121211000.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56284753 + ... + 56286744.

It is an arithmetic number, because the mean of its divisors is an integer number (11032006804).

Almost surely, 2^112121211012 is an apocalyptic number.

112121211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112121211012 is an abundant number, since it is smaller than the sum of its proper divisors (152646952284).

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

112121211012 is a wasteful number, since it uses less digits than its factorization.

112121211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112571587 (or 112571585 counting only the distinct ones).

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

Adding to 112121211012 its reverse (210112121211), we get a palindrome (322233332223).

The spelling of 112121211012 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred eleven thousand, twelve".