112212120121020 has 144 divisors (see below), whose sum is σ = 340593576331008. Its totient is φ = 29904175641600.

The previous prime is 112212120121009. The next prime is 112212120121051. The reversal of 112212120121020 is 20121021212211.

112212120121020 is a `hidden beast` number, since 1 + 1 + 221 + 212 + 0 + 1 + 210 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 112212120120984 and 112212120121002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3932148192 + ... + 3932176728.

Almost surely, 2^{112212120121020} is an apocalyptic number.

112212120121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112212120121020 is an abundant number, since it is smaller than the sum of its proper divisors (228381456209988).

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

112212120121020 is a wasteful number, since it uses less digits than its factorization.

112212120121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41700 (or 41695 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 112212120121020 its reverse (20121021212211), we get a palindrome (132333141333231).

The spelling of 112212120121020 in words is "one hundred twelve trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-one thousand, twenty".