33222013 has 16 divisors (see below), whose sum is σ = 39090240. Its totient is φ = 27907200.

The previous prime is 33221999. The next prime is 33222047. The reversal of 33222013 is 31022233.

It is not a de Polignac number, because 33222013 - 2²¹ = 31124861 is a prime.

It is a super-2 number, since 2×33222013² = 2207404295544338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33222073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6631 + ... + 10507.

It is an arithmetic number, because the mean of its divisors is an integer number (2443140).

Almost surely, 2^33222013 is an apocalyptic number.

It is an amenable number.

33222013 is a deficient number, since it is larger than the sum of its proper divisors (5868227).

33222013 is a wasteful number, since it uses less digits than its factorization.

33222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 33222013 is about 5763.8540057847. The cubic root of 33222013 is about 321.4711333081.

Adding to 33222013 its reverse (31022233), we get a palindrome (64244246).

It can be divided in two parts, 332220 and 13, that added together give a palindrome (332233).

The spelling of 33222013 in words is "thirty-three million, two hundred twenty-two thousand, thirteen".