33221243121 has 8 divisors (see below), whose sum is σ = 48321808224. Its totient is φ = 20134086720.

The previous prime is 33221243089. The next prime is 33221243149. The reversal of 33221243121 is 12134212233.

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

It is not a de Polignac number, because 33221243121 - 2⁵ = 33221243089 is a prime.

It is a super-2 number, since 2×33221243121² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33221243091 and 33221243100.

It is not an unprimeable number, because it can be changed into a prime (33221243921) 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, 503352136 + ... + 503352201.

It is an arithmetic number, because the mean of its divisors is an integer number (6040226028).

Almost surely, 2^33221243121 is an apocalyptic number.

It is an amenable number.

33221243121 is a deficient number, since it is larger than the sum of its proper divisors (15100565103).

33221243121 is a wasteful number, since it uses less digits than its factorization.

33221243121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006704351.

The product of its digits is 1728, while the sum is 24.

Adding to 33221243121 its reverse (12134212233), we get a palindrome (45355455354).

The spelling of 33221243121 in words is "thirty-three billion, two hundred twenty-one million, two hundred forty-three thousand, one hundred twenty-one".