112000020121 has 6 divisors (see below), whose sum is σ = 123107460266. Its totient is φ = 101818200000.

The previous prime is 112000020107. The next prime is 112000020149. The reversal of 112000020121 is 121020000211.

It can be written as a sum of positive squares in only one way, i.e., 111999992896 + 27225 = 334664^2 + 165^2 .

It is not a de Polignac number, because 112000020121 - 2⁵ = 112000020089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112000020098 and 112000020107.

It is not an unprimeable number, because it can be changed into a prime (112000027121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462809880 + ... + 462810121.

Almost surely, 2^112000020121 is an apocalyptic number.

112000020121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112000020121 is a deficient number, since it is larger than the sum of its proper divisors (11107440145).

112000020121 is an equidigital number, since it uses as much as digits as its factorization.

112000020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925620023 (or 925620012 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 112000020121 its reverse (121020000211), we get a palindrome (233020020332).

The spelling of 112000020121 in words is "one hundred twelve billion, twenty thousand, one hundred twenty-one".