12290071 has 2 divisors, whose sum is σ = 12290072. Its totient is φ = 12290070.

The previous prime is 12290009. The next prime is 12290123. The reversal of 12290071 is 17009221.

12290071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (17009221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12290071 - 2⁷ = 12289943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12296071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145035 + 6145036.

It is an arithmetic number, because the mean of its divisors is an integer number (6145036).

Almost surely, 2^12290071 is an apocalyptic number.

12290071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290071 is an equidigital number, since it uses as much as digits as its factorization.

12290071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 12290071 is about 3505.7197549148. The cubic root of 12290071 is about 230.7728944917.

Adding to 12290071 its reverse (17009221), we get a palindrome (29299292).

The spelling of 12290071 in words is "twelve million, two hundred ninety thousand, seventy-one".