2121101230201 has 2 divisors, whose sum is σ = 2121101230202. Its totient is φ = 2121101230200.

The previous prime is 2121101230189. The next prime is 2121101230243. The reversal of 2121101230201 is 1020321011212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1275372696976 + 845728533225 = 1129324^2 + 919635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121101230201 is a prime.

It is a super-3 number, since 3×2121101230201³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2121101230901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060550615100 + 1060550615101.

It is an arithmetic number, because the mean of its divisors is an integer number (1060550615101).

Almost surely, 2^{2121101230201} is an apocalyptic number.

It is an amenable number.

2121101230201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121101230201 is an equidigital number, since it uses as much as digits as its factorization.

2121101230201 is an evil number, because the sum of its binary digits is even.

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

Adding to 2121101230201 its reverse (1020321011212), we get a palindrome (3141422241413).

The spelling of 2121101230201 in words is "two trillion, one hundred twenty-one billion, one hundred one million, two hundred thirty thousand, two hundred one".