12211853 has 2 divisors, whose sum is σ = 12211854. Its totient is φ = 12211852.

The previous prime is 12211847. The next prime is 12211867. The reversal of 12211853 is 35811221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11854249 + 357604 = 3443^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211853 - 2⁶ = 12211789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211553) 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, 6105926 + 6105927.

It is an arithmetic number, because the mean of its divisors is an integer number (6105927).

Almost surely, 2^12211853 is an apocalyptic number.

It is an amenable number.

12211853 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211853 is an equidigital number, since it uses as much as digits as its factorization.

12211853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 23.

The square root of 12211853 is about 3494.5461794058. The cubic root of 12211853 is about 230.2822810116.

The spelling of 12211853 in words is "twelve million, two hundred eleven thousand, eight hundred fifty-three".