121000210210201 has 32 divisors (see below), whose sum is σ = 138924598625280. Its totient is φ = 103236567469056.

The previous prime is 121000210210157. The next prime is 121000210210277. The reversal of 121000210210201 is 102012012000121.

It is a de Polignac number, because none of the positive numbers 2^k-121000210210201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000210210001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13776633456 + ... + 13776642238.

It is an arithmetic number, because the mean of its divisors is an integer number (4341393707040).

Almost surely, 2^{121000210210201} is an apocalyptic number.

It is an amenable number.

121000210210201 is a deficient number, since it is larger than the sum of its proper divisors (17924388415079).

121000210210201 is an equidigital number, since it uses as much as digits as its factorization.

121000210210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18073.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121000210210201 its reverse (102012012000121), we get a palindrome (223012222210322).

The spelling of 121000210210201 in words is "one hundred twenty-one trillion, two hundred ten million, two hundred ten thousand, two hundred one".