33220222 has 8 divisors (see below), whose sum is σ = 56948976. Its totient is φ = 14237232.

The previous prime is 33220219. The next prime is 33220237. The reversal of 33220222 is 22202233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33220222² = 2207166299458568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33220196 and 33220205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186423 + ... + 1186450.

It is an arithmetic number, because the mean of its divisors is an integer number (7118622).

Almost surely, 2^33220222 is an apocalyptic number.

33220222 is a deficient number, since it is larger than the sum of its proper divisors (23728754).

33220222 is a wasteful number, since it uses less digits than its factorization.

33220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372882.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 33220222 is about 5763.6986388950. The cubic root of 33220222 is about 321.4653563639.

Adding to 33220222 its reverse (22202233), we get a palindrome (55422455).

The spelling of 33220222 in words is "thirty-three million, two hundred twenty thousand, two hundred twenty-two".