12120002101 has 2 divisors, whose sum is σ = 12120002102. Its totient is φ = 12120002100.

The previous prime is 12120002077. The next prime is 12120002107. The reversal of 12120002101 is 10120002121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6610503025 + 5509499076 = 81305^2 + 74226^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120002101 - 2²⁷ = 11985784373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120002107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060001050 + 6060001051.

It is an arithmetic number, because the mean of its divisors is an integer number (6060001051).

Almost surely, 2^12120002101 is an apocalyptic number.

It is an amenable number.

12120002101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120002101 is an equidigital number, since it uses as much as digits as its factorization.

12120002101 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 10.

Adding to 12120002101 its reverse (10120002121), we get a palindrome (22240004222).

The spelling of 12120002101 in words is "twelve billion, one hundred twenty million, two thousand, one hundred one".