33233320221 has 8 divisors (see below), whose sum is σ = 44313477024. Its totient is φ = 22154355120.

The previous prime is 33233320189. The next prime is 33233320279. The reversal of 33233320221 is 12202333233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33233320221 - 2⁵ = 33233320189 is a prime.

It is a super-2 number, since 2×33233320221² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33233320191 and 33233320200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33233320291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230686 + ... + 345951.

It is an arithmetic number, because the mean of its divisors is an integer number (5539184628).

Almost surely, 2^33233320221 is an apocalyptic number.

It is an amenable number.

33233320221 is a deficient number, since it is larger than the sum of its proper divisors (11080156803).

33233320221 is a wasteful number, since it uses less digits than its factorization.

33233320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595851.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 33233320221 its reverse (12202333233), we get a palindrome (45435653454).

The spelling of 33233320221 in words is "thirty-three billion, two hundred thirty-three million, three hundred twenty thousand, two hundred twenty-one".