12220353 has 6 divisors (see below), whose sum is σ = 17651634. Its totient is φ = 8146896.

The previous prime is 12220333. The next prime is 12220361. The reversal of 12220353 is 35302221.

It can be written as a sum of positive squares in only one way, i.e., 6517809 + 5702544 = 2553^2 + 2388^2 .

It is not a de Polignac number, because 12220353 - 2¹⁰ = 12219329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678900 + ... + 678917.

It is an arithmetic number, because the mean of its divisors is an integer number (2941939).

Almost surely, 2^12220353 is an apocalyptic number.

It is an amenable number.

12220353 is a deficient number, since it is larger than the sum of its proper divisors (5431281).

12220353 is a wasteful number, since it uses less digits than its factorization.

12220353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357823 (or 1357820 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 12220353 is about 3495.7621486594. The cubic root of 12220353 is about 230.3356975684.

Adding to 12220353 its reverse (35302221), we get a palindrome (47522574).

The spelling of 12220353 in words is "twelve million, two hundred twenty thousand, three hundred fifty-three".