3351220221533 has 4 divisors (see below), whose sum is σ = 3384400619868. Its totient is φ = 3318039823200.

The previous prime is 3351220221497. The next prime is 3351220221563.

3351220221533 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2515453096324 + 835767125209 = 1586018^2 + 914203^2 .

It is a cyclic number.

It is not a de Polignac number, because 3351220221533 - 2¹⁴ = 3351220205149 is a prime.

It is a super-3 number, since 3×3351220221533³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3351220221533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3351220221563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16590199016 + ... + 16590199217.

It is an arithmetic number, because the mean of its divisors is an integer number (846100154967).

Almost surely, 2^{3351220221533} is an apocalyptic number.

It is an amenable number.

3351220221533 is a deficient number, since it is larger than the sum of its proper divisors (33180398335).

3351220221533 is a wasteful number, since it uses less digits than its factorization.

3351220221533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33180398334.

The product of its (nonzero) digits is 32400, while the sum is 32.

It can be divided in two parts, 3351220 and 221533, that added together give a palindrome (3572753).

The spelling of 3351220221533 in words is "three trillion, three hundred fifty-one billion, two hundred twenty million, two hundred twenty-one thousand, five hundred thirty-three".