112120112002121 has 4 divisors (see below), whose sum is σ = 112143861236244. Its totient is φ = 112096362768000.

The previous prime is 112120112002117. The next prime is 112120112002139. The reversal of 112120112002121 is 121200211021211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77170602702400 + 34949509299721 = 8784680^2 + 5911811^2 .

It is a cyclic number.

It is not a de Polignac number, because 112120112002121 - 2² = 112120112002117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112120112002121.

It is not an unprimeable number, because it can be changed into a prime (112120112002421) 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, 11874609980 + ... + 11874619421.

It is an arithmetic number, because the mean of its divisors is an integer number (28035965309061).

Almost surely, 2^{112120112002121} is an apocalyptic number.

It is an amenable number.

112120112002121 is a deficient number, since it is larger than the sum of its proper divisors (23749234123).

112120112002121 is an equidigital number, since it uses as much as digits as its factorization.

112120112002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23749234122.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112120112002121 its reverse (121200211021211), we get a palindrome (233320323023332).

The spelling of 112120112002121 in words is "one hundred twelve trillion, one hundred twenty billion, one hundred twelve million, two thousand, one hundred twenty-one".