12120102101 has 2 divisors, whose sum is σ = 12120102102. Its totient is φ = 12120102100.

The previous prime is 12120102079. The next prime is 12120102131. The reversal of 12120102101 is 10120102121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10276687876 + 1843414225 = 101374^2 + 42935^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120102101 - 2¹⁸ = 12119839957 is a prime.

It is a super-2 number, since 2×12120102101² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120102131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060051050 + 6060051051.

It is an arithmetic number, because the mean of its divisors is an integer number (6060051051).

Almost surely, 2^12120102101 is an apocalyptic number.

It is an amenable number.

12120102101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120102101 is an equidigital number, since it uses as much as digits as its factorization.

12120102101 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 12120102101 its reverse (10120102121), we get a palindrome (22240204222).

The spelling of 12120102101 in words is "twelve billion, one hundred twenty million, one hundred two thousand, one hundred one".