121112100212112 has 60 divisors (see below), whose sum is σ = 338957319499344. Its totient is φ = 40369312459200.

The previous prime is 121112100212071. The next prime is 121112100212119. The reversal of 121112100212112 is 211212001211121.

It is a happy number.

121112100212112 is a `hidden beast` number, since 121 + 11 + 210 + 0 + 212 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121112100212119) 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 11 ways as a sum of consecutive naturals, for example, 10246014 + ... + 18633437.

Almost surely, 2^{121112100212112} is an apocalyptic number.

121112100212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121112100212112 is an abundant number, since it is smaller than the sum of its proper divisors (217845219287232).

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

121112100212112 is a wasteful number, since it uses less digits than its factorization.

121112100212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28908588 (or 28908579 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121112100212112 its reverse (211212001211121), we get a palindrome (332324101423233).

Subtracting 121112100212112 from its reverse (211212001211121), we obtain a palindrome (90099900999009).

The spelling of 121112100212112 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred million, two hundred twelve thousand, one hundred twelve".