33222020021 has 8 divisors (see below), whose sum is σ = 34551813120.
Its totient is φ = 31914958608.
The previous prime is 33222020009. The next prime is 33222020023. The reversal of 33222020021 is 12002022233.
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 33222020021 - 226 = 33154911157 is a prime.
It is a super-2 number, since 2×332220200212 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (33222020023) 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 7 ways as a sum of consecutive naturals, for example, 5679941 + ... + 5685786.
It is an arithmetic number, because the mean of its divisors is an integer number (4318976640).
Almost surely, 233222020021 is an apocalyptic number.
It is an amenable number.
33222020021 is a deficient number, since it is larger than the sum of its proper divisors (1329793099).
33222020021 is a wasteful number, since it uses less digits than its factorization.
33222020021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11365843.
The product of its (nonzero) digits is 288, while the sum is 17.
Adding to 33222020021 its reverse (12002022233), we get a palindrome (45224042254).
The spelling of 33222020021 in words is "thirty-three billion, two hundred twenty-two million, twenty thousand, twenty-one".