33301213 has 16 divisors (see below), whose sum is σ = 37253376. Its totient is φ = 29514240.

The previous prime is 33301207. The next prime is 33301237. The reversal of 33301213 is 31210333.

It is a cyclic number.

It is not a de Polignac number, because 33301213 - 2¹⁷ = 33170141 is a prime.

It is a super-2 number, since 2×33301213² = 2217941574542738, 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 (33301253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90556 + ... + 90922.

It is an arithmetic number, because the mean of its divisors is an integer number (2328336).

Almost surely, 2^33301213 is an apocalyptic number.

It is an amenable number.

33301213 is a deficient number, since it is larger than the sum of its proper divisors (3952163).

33301213 is a wasteful number, since it uses less digits than its factorization.

33301213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 33301213 is about 5770.7203189896. The cubic root of 33301213 is about 321.7263888442.

Adding to 33301213 its reverse (31210333), we get a palindrome (64511546).

The spelling of 33301213 in words is "thirty-three million, three hundred one thousand, two hundred thirteen".