121301120203201 has 16 divisors (see below), whose sum is σ = 135212356468800. Its totient is φ = 108144186766848.

The previous prime is 121301120203199. The next prime is 121301120203243. The reversal of 121301120203201 is 102302021103121.

It is a cyclic number.

It is not a de Polignac number, because 121301120203201 - 2¹ = 121301120203199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121301120203801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19584100 + ... + 25022773.

It is an arithmetic number, because the mean of its divisors is an integer number (8450772279300).

Almost surely, 2^{121301120203201} is an apocalyptic number.

It is an amenable number.

121301120203201 is a deficient number, since it is larger than the sum of its proper divisors (13911236265599).

121301120203201 is a wasteful number, since it uses less digits than its factorization.

121301120203201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44615328.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121301120203201 its reverse (102302021103121), we get a palindrome (223603141306322).

The spelling of 121301120203201 in words is "one hundred twenty-one trillion, three hundred one billion, one hundred twenty million, two hundred three thousand, two hundred one".