12102110201 has 2 divisors, whose sum is σ = 12102110202. Its totient is φ = 12102110200.

The previous prime is 12102110197. The next prime is 12102110233. The reversal of 12102110201 is 10201120121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9888313600 + 2213796601 = 99440^2 + 47051^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102110201 - 2² = 12102110197 is a prime.

It is a super-2 number, since 2×12102110201² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12102110281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051055100 + 6051055101.

It is an arithmetic number, because the mean of its divisors is an integer number (6051055101).

Almost surely, 2^12102110201 is an apocalyptic number.

It is an amenable number.

12102110201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102110201 is an equidigital number, since it uses as much as digits as its factorization.

12102110201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12102110201 its reverse (10201120121), we get a palindrome (22303230322).

The spelling of 12102110201 in words is "twelve billion, one hundred two million, one hundred ten thousand, two hundred one".