112121201121121 has 4 divisors (see below), whose sum is σ = 115738014060544. Its totient is φ = 108504388181700.

The previous prime is 112121201121091. The next prime is 112121201121133. The reversal of 112121201121121 is 121121102121211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112121201121121 - 2¹³ = 112121201112929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112121201121821) 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, 1808406469665 + ... + 1808406469726.

It is an arithmetic number, because the mean of its divisors is an integer number (28934503515136).

Almost surely, 2^{112121201121121} is an apocalyptic number.

It is an amenable number.

112121201121121 is a deficient number, since it is larger than the sum of its proper divisors (3616812939423).

112121201121121 is an equidigital number, since it uses as much as digits as its factorization.

112121201121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616812939422.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 112121201121121 its reverse (121121102121211), we get a palindrome (233242303242332).

The spelling of 112121201121121 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred one million, one hundred twenty-one thousand, one hundred twenty-one".