121415203201 has 4 divisors (see below), whose sum is σ = 121759155972. Its totient is φ = 121071250432.

The previous prime is 121415203193. The next prime is 121415203241. The reversal of 121415203201 is 102302514121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102302514121 = 1789 ⋅57184189.

It can be written as a sum of positive squares in 2 ways, for example, as 44865594225 + 76549608976 = 211815^2 + 276676^2 .

It is a cyclic number.

It is not a de Polignac number, because 121415203201 - 2³ = 121415203193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121415203241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171975856 + ... + 171976561.

It is an arithmetic number, because the mean of its divisors is an integer number (30439788993).

Almost surely, 2^121415203201 is an apocalyptic number.

It is an amenable number.

121415203201 is a deficient number, since it is larger than the sum of its proper divisors (343952771).

121415203201 is an equidigital number, since it uses as much as digits as its factorization.

121415203201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343952770.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 121415203201 its reverse (102302514121), we get a palindrome (223717717322).

The spelling of 121415203201 in words is "one hundred twenty-one billion, four hundred fifteen million, two hundred three thousand, two hundred one".