112111121221020 has 72 divisors (see below), whose sum is σ = 340110952940304. Its totient is φ = 29892733989888.

The previous prime is 112111121221003. The next prime is 112111121221079. The reversal of 112111121221020 is 20122121111211.

It is a happy number.

112111121221020 is a `hidden beast` number, since 1 + 1 + 211 + 11 + 212 + 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 = 112111121220984 and 112111121221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35621589 + ... + 38640908.

It is an arithmetic number, because the mean of its divisors is an integer number (4723763235282).

Almost surely, 2^{112111121221020} is an apocalyptic number.

112111121221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112111121221020 is an abundant number, since it is smaller than the sum of its proper divisors (227999831719284).

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

112111121221020 is a wasteful number, since it uses less digits than its factorization.

112111121221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74270899 (or 74270894 counting only the distinct ones).

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

Adding to 112111121221020 its reverse (20122121111211), we get a palindrome (132233242332231).

The spelling of 112111121221020 in words is "one hundred twelve trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty".