33232012221 has 8 divisors (see below), whose sum is σ = 44310974400. Its totient is φ = 22153862432.

The previous prime is 33232012217. The next prime is 33232012223. The reversal of 33232012221 is 12221023233.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 33232012221 - 2² = 33232012217 is a prime.

It is a super-2 number, since 2×33232012221² (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 (33232012223) 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, 100200 + ... + 276593.

It is an arithmetic number, because the mean of its divisors is an integer number (5538871800).

Almost surely, 2^33232012221 is an apocalyptic number.

It is an amenable number.

33232012221 is a deficient number, since it is larger than the sum of its proper divisors (11078962179).

33232012221 is a wasteful number, since it uses less digits than its factorization.

33232012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406195.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33232012221 its reverse (12221023233), we get a palindrome (45453035454).

The spelling of 33232012221 in words is "thirty-three billion, two hundred thirty-two million, twelve thousand, two hundred twenty-one".