33103231221 has 8 divisors (see below), whose sum is σ = 44542574560. Its totient is φ = 21866354352.

The previous prime is 33103231219. The next prime is 33103231253. The reversal of 33103231221 is 12213230133.

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

It is not a de Polignac number, because 33103231221 - 2¹ = 33103231219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33103232221) 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, 50616235 + ... + 50616888.

It is an arithmetic number, because the mean of its divisors is an integer number (5567821820).

Almost surely, 2^33103231221 is an apocalyptic number.

It is an amenable number.

33103231221 is a deficient number, since it is larger than the sum of its proper divisors (11439343339).

33103231221 is a wasteful number, since it uses less digits than its factorization.

33103231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101233235.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 33103231221 its reverse (12213230133), we get a palindrome (45316461354).

The spelling of 33103231221 in words is "thirty-three billion, one hundred three million, two hundred thirty-one thousand, two hundred twenty-one".