33216116 has 12 divisors (see below), whose sum is σ = 58292640. Its totient is φ = 16561080.

The previous prime is 33216091. The next prime is 33216119. The reversal of 33216116 is 61161233.

It is a happy number.

It is a super-2 number, since 2×33216116² = 2206620724250912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33216091 and 33216100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33216119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130 + ... + 13001.

It is an arithmetic number, because the mean of its divisors is an integer number (4857720).

Almost surely, 2^33216116 is an apocalyptic number.

It is an amenable number.

33216116 is a deficient number, since it is larger than the sum of its proper divisors (25076524).

33216116 is a wasteful number, since it uses less digits than its factorization.

33216116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23494 (or 23492 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 33216116 is about 5763.3424329984. The cubic root of 33216116 is about 321.4521115082.

Adding to 33216116 its reverse (61161233), we get a palindrome (94377349).

The spelling of 33216116 in words is "thirty-three million, two hundred sixteen thousand, one hundred sixteen".