12210973 has 2 divisors, whose sum is σ = 12210974. Its totient is φ = 12210972.

The previous prime is 12210971. The next prime is 12210983. The reversal of 12210973 is 37901221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11847364 + 363609 = 3442^2 + 603^2 .

It is an emirp because it is prime and its reverse (37901221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12210973 - 2¹ = 12210971 is a prime.

Together with 12210971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12210971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105486 + 6105487.

It is an arithmetic number, because the mean of its divisors is an integer number (6105487).

Almost surely, 2^12210973 is an apocalyptic number.

It is an amenable number.

12210973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210973 is an equidigital number, since it uses as much as digits as its factorization.

12210973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12210973 is about 3494.4202666537. The cubic root of 12210973 is about 230.2767494111.

The spelling of 12210973 in words is "twelve million, two hundred ten thousand, nine hundred seventy-three".