121121033030201 has 4 divisors (see below), whose sum is σ = 125297620376100. Its totient is φ = 116944445684304.

The previous prime is 121121033030189. The next prime is 121121033030237. The reversal of 121121033030201 is 102030330121121.

It is a happy number.

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 90851493876025 + 30269539154176 = 9531605^2 + 5501776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121121033030201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121121033330201) 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 3 ways as a sum of consecutive naturals, for example, 2088293672906 + ... + 2088293672963.

It is an arithmetic number, because the mean of its divisors is an integer number (31324405094025).

Almost surely, 2^{121121033030201} is an apocalyptic number.

It is an amenable number.

121121033030201 is a deficient number, since it is larger than the sum of its proper divisors (4176587345899).

121121033030201 is an equidigital number, since it uses as much as digits as its factorization.

121121033030201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176587345898.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121121033030201 its reverse (102030330121121), we get a palindrome (223151363151322).

The spelling of 121121033030201 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, thirty-three million, thirty thousand, two hundred one".