33220101331221 has 16 divisors (see below), whose sum is σ = 50652219999744. Its totient is φ = 18971247592944.

The previous prime is 33220101331213. The next prime is 33220101331259. The reversal of 33220101331221 is 12213310102233.

It is not a de Polignac number, because 33220101331221 - 2³ = 33220101331213 is a prime.

It is a super-2 number, since 2×33220101331221² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33220101331191 and 33220101331200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220101335221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486108915 + ... + 486177248.

It is an arithmetic number, because the mean of its divisors is an integer number (3165763749984).

Almost surely, 2^{33220101331221} is an apocalyptic number.

It is an amenable number.

33220101331221 is a deficient number, since it is larger than the sum of its proper divisors (17432118668523).

33220101331221 is a wasteful number, since it uses less digits than its factorization.

33220101331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972287800.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 33220101331221 its reverse (12213310102233), we get a palindrome (45433411433454).

The spelling of 33220101331221 in words is "thirty-three trillion, two hundred twenty billion, one hundred one million, three hundred thirty-one thousand, two hundred twenty-one".