33210343221 has 32 divisors (see below), whose sum is σ = 49988689920. Its totient is φ = 19426814400.

The previous prime is 33210343213. The next prime is 33210343249. The reversal of 33210343221 is 12234301233.

It is not a de Polignac number, because 33210343221 - 2³ = 33210343213 is a prime.

It is a super-2 number, since 2×33210343221² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33210343191 and 33210343200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33210343321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5232576 + ... + 5238918.

It is an arithmetic number, because the mean of its divisors is an integer number (1562146560).

Almost surely, 2^33210343221 is an apocalyptic number.

It is an amenable number.

33210343221 is a deficient number, since it is larger than the sum of its proper divisors (16778346699).

33210343221 is a wasteful number, since it uses less digits than its factorization.

33210343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11857.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 33210343221 its reverse (12234301233), we get a palindrome (45444644454).

The spelling of 33210343221 in words is "thirty-three billion, two hundred ten million, three hundred forty-three thousand, two hundred twenty-one".