3912212189 has 2 divisors, whose sum is σ = 3912212190. Its totient is φ = 3912212188.

The previous prime is 3912212153. The next prime is 3912212203. The reversal of 3912212189 is 9812122193.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3643088164 + 269124025 = 60358^2 + 16405^2 .

It is a cyclic number.

It is not a de Polignac number, because 3912212189 - 2¹² = 3912208093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3912212149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1956106094 + 1956106095.

It is an arithmetic number, because the mean of its divisors is an integer number (1956106095).

Almost surely, 2^3912212189 is an apocalyptic number.

It is an amenable number.

3912212189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3912212189 is an equidigital number, since it uses as much as digits as its factorization.

3912212189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 38.

The square root of 3912212189 is about 62547.6793254554. The cubic root of 3912212189 is about 1575.7021730420.

The spelling of 3912212189 in words is "three billion, nine hundred twelve million, two hundred twelve thousand, one hundred eighty-nine".