121200112201121 has 8 divisors (see below), whose sum is σ = 122535281950464. Its totient is φ = 119871471399840.

The previous prime is 121200112201013. The next prime is 121200112201171. The reversal of 121200112201121 is 121102211002121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121200112201121 - 2³⁰ = 121199038459297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121200112201121.

It is not an unprimeable number, because it can be changed into a prime (121200112201171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632199685 + ... + 1632273938.

It is an arithmetic number, because the mean of its divisors is an integer number (15316910243808).

Almost surely, 2^{121200112201121} is an apocalyptic number.

It is an amenable number.

121200112201121 is a deficient number, since it is larger than the sum of its proper divisors (1335169749343).

121200112201121 is a wasteful number, since it uses less digits than its factorization.

121200112201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264474031.

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

Adding to 121200112201121 its reverse (121102211002121), we get a palindrome (242302323203242).

The spelling of 121200112201121 in words is "one hundred twenty-one trillion, two hundred billion, one hundred twelve million, two hundred one thousand, one hundred twenty-one".