12120211189 has 2 divisors, whose sum is σ = 12120211190. Its totient is φ = 12120211188.

The previous prime is 12120211157. The next prime is 12120211237. The reversal of 12120211189 is 98111202121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6235787089 + 5884424100 = 78967^2 + 76710^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120211189 - 2⁵ = 12120211157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120211589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060105594 + 6060105595.

It is an arithmetic number, because the mean of its divisors is an integer number (6060105595).

Almost surely, 2^12120211189 is an apocalyptic number.

It is an amenable number.

12120211189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120211189 is an equidigital number, since it uses as much as digits as its factorization.

12120211189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 12120211189 in words is "twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred eighty-nine".