33221103221 has 8 divisors (see below), whose sum is σ = 34297536000. Its totient is φ = 32144969520.

The previous prime is 33221103217. The next prime is 33221103241. The reversal of 33221103221 is 12230112233.

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 33221103221 - 2² = 33221103217 is a prime.

It is a super-2 number, since 2×33221103221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33221103193 and 33221103202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33221103241) 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, 163040 + ... + 304998.

It is an arithmetic number, because the mean of its divisors is an integer number (4287192000).

Almost surely, 2^33221103221 is an apocalyptic number.

33221103221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33221103221 is a deficient number, since it is larger than the sum of its proper divisors (1076432779).

33221103221 is a wasteful number, since it uses less digits than its factorization.

33221103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149539.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 33221103221 its reverse (12230112233), we get a palindrome (45451215454).

The spelling of 33221103221 in words is "thirty-three billion, two hundred twenty-one million, one hundred three thousand, two hundred twenty-one".