112100100121 has 4 divisors (see below), whose sum is σ = 112100778292. Its totient is φ = 112099421952.

The previous prime is 112100100089. The next prime is 112100100127. The reversal of 112100100121 is 121001001211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7293160000 + 104806940121 = 85400^2 + 323739^2 .

It is a cyclic number.

It is not a de Polignac number, because 112100100121 - 2⁵ = 112100100089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112100100098 and 112100100107.

It is not an unprimeable number, because it can be changed into a prime (112100100127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89065 + ... + 481801.

It is an arithmetic number, because the mean of its divisors is an integer number (28025194573).

Almost surely, 2^112100100121 is an apocalyptic number.

It is an amenable number.

112100100121 is a deficient number, since it is larger than the sum of its proper divisors (678171).

112100100121 is an equidigital number, since it uses as much as digits as its factorization.

112100100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678170.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 112100100121 its reverse (121001001211), we get a palindrome (233101101332).

The spelling of 112100100121 in words is "one hundred twelve billion, one hundred million, one hundred thousand, one hundred twenty-one".