33210342221 has 16 divisors (see below), whose sum is σ = 38335734528. Its totient is φ = 28180396800.

The previous prime is 33210342211. The next prime is 33210342259. The reversal of 33210342221 is 12224301233.

It is a cyclic number.

It is not a de Polignac number, because 33210342221 - 2⁶ = 33210342157 is a prime.

It is a super-2 number, since 2×33210342221² (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 (33210342211) 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, 3052331 + ... + 3063191.

It is an arithmetic number, because the mean of its divisors is an integer number (2395983408).

Almost surely, 2^33210342221 is an apocalyptic number.

It is an amenable number.

33210342221 is a deficient number, since it is larger than the sum of its proper divisors (5125392307).

33210342221 is a wasteful number, since it uses less digits than its factorization.

33210342221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15212.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 33210342221 its reverse (12224301233), we get a palindrome (45434643454).

The spelling of 33210342221 in words is "thirty-three billion, two hundred ten million, three hundred forty-two thousand, two hundred twenty-one".