12220333 has 2 divisors, whose sum is σ = 12220334. Its totient is φ = 12220332.

The previous prime is 12220301. The next prime is 12220361. The reversal of 12220333 is 33302221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8168164 + 4052169 = 2858^2 + 2013^2 .

It is an emirp because it is prime and its reverse (33302221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12220333 - 2⁵ = 12220301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110166 + 6110167.

It is an arithmetic number, because the mean of its divisors is an integer number (6110167).

Almost surely, 2^12220333 is an apocalyptic number.

It is an amenable number.

12220333 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220333 is an equidigital number, since it uses as much as digits as its factorization.

12220333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 12220333 is about 3495.7592880517. The cubic root of 12220333 is about 230.3355719114.

Adding to 12220333 its reverse (33302221), we get a palindrome (45522554).

The spelling of 12220333 in words is "twelve million, two hundred twenty thousand, three hundred thirty-three".