33222016 has 16 divisors (see below), whose sum is σ = 66184740. Its totient is φ = 16610944.

The previous prime is 33221999. The next prime is 33222047. The reversal of 33222016 is 61022233.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×33222016² = 2207404694208512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33221984 and 33222002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129646 + ... + 129901.

Almost surely, 2^33222016 is an apocalyptic number.

It is an amenable number.

33222016 is a deficient number, since it is larger than the sum of its proper divisors (32962724).

33222016 is an equidigital number, since it uses as much as digits as its factorization.

33222016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259561 (or 259549 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 33222016 is about 5763.8542660272. The cubic root of 33222016 is about 321.4711429845.

Adding to 33222016 its reverse (61022233), we get a palindrome (94244249).

The spelling of 33222016 in words is "thirty-three million, two hundred twenty-two thousand, sixteen".