2321201100121 has 2 divisors, whose sum is σ = 2321201100122. Its totient is φ = 2321201100120.

The previous prime is 2321201100067. The next prime is 2321201100167. The reversal of 2321201100121 is 1210011021232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1860073184025 + 461127916096 = 1363845^2 + 679064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321201100121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2321201100095 and 2321201100104.

It is not a weakly prime, because it can be changed into another prime (2321201100181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160600550060 + 1160600550061.

It is an arithmetic number, because the mean of its divisors is an integer number (1160600550061).

Almost surely, 2^{2321201100121} is an apocalyptic number.

It is an amenable number.

2321201100121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321201100121 is an equidigital number, since it uses as much as digits as its factorization.

2321201100121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2321201100121 its reverse (1210011021232), we get a palindrome (3531212121353).

The spelling of 2321201100121 in words is "two trillion, three hundred twenty-one billion, two hundred one million, one hundred thousand, one hundred twenty-one".