33450364221 has 16 divisors (see below), whose sum is σ = 46150505280. Its totient is φ = 21536887680.

The previous prime is 33450364147. The next prime is 33450364229. The reversal of 33450364221 is 12246305433.

It is a happy number.

It is not a de Polignac number, because 33450364221 - 2²⁶ = 33383255357 is a prime.

It is a super-2 number, since 2×33450364221² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33450364229) 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, 1445290 + ... + 1468251.

It is an arithmetic number, because the mean of its divisors is an integer number (2884406580).

Almost surely, 2^33450364221 is an apocalyptic number.

It is an amenable number.

33450364221 is a deficient number, since it is larger than the sum of its proper divisors (12700141059).

33450364221 is a wasteful number, since it uses less digits than its factorization.

33450364221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913676.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 33450364221 its reverse (12246305433), we get a palindrome (45696669654).

The spelling of 33450364221 in words is "thirty-three billion, four hundred fifty million, three hundred sixty-four thousand, two hundred twenty-one".