33422231 has 2 divisors, whose sum is σ = 33422232. Its totient is φ = 33422230.

The previous prime is 33422227. The next prime is 33422251. The reversal of 33422231 is 13222433.

It is an a-pointer prime, because the next prime (33422251) can be obtained adding 33422231 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33422231 - 2² = 33422227 is a prime.

It is a super-2 number, since 2×33422231² = 2234091050034722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33422251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16711115 + 16711116.

It is an arithmetic number, because the mean of its divisors is an integer number (16711116).

Almost surely, 2^33422231 is an apocalyptic number.

33422231 is a deficient number, since it is larger than the sum of its proper divisors (1).

33422231 is an equidigital number, since it uses as much as digits as its factorization.

33422231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 20.

The square root of 33422231 is about 5781.1963294806. The cubic root of 33422231 is about 322.1156400875.

Adding to 33422231 its reverse (13222433), we get a palindrome (46644664).

The spelling of 33422231 in words is "thirty-three million, four hundred twenty-two thousand, two hundred thirty-one".