33213322 has 4 divisors (see below), whose sum is σ = 49819986. Its totient is φ = 16606660.

The previous prime is 33213317. The next prime is 33213331. The reversal of 33213322 is 22331233.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30041361 + 3171961 = 5481^2 + 1781^2 .

It is a super-2 number, since 2×33213322² = 2206249516551368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33213322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303329 + ... + 8303332.

Almost surely, 2^33213322 is an apocalyptic number.

33213322 is a deficient number, since it is larger than the sum of its proper divisors (16606664).

33213322 is a wasteful number, since it uses less digits than its factorization.

33213322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16606663.

The product of its digits is 648, while the sum is 19.

The square root of 33213322 is about 5763.1000338360. The cubic root of 33213322 is about 321.4430981888.

Adding to 33213322 its reverse (22331233), we get a palindrome (55544555).

The spelling of 33213322 in words is "thirty-three million, two hundred thirteen thousand, three hundred twenty-two".