33013331221033 has 8 divisors (see below), whose sum is σ = 33825335059656. Its totient is φ = 32201651222400.

The previous prime is 33013331221021. The next prime is 33013331221081. The reversal of 33013331221033 is 33012213331033.

It can be written as a sum of positive squares in 4 ways, for example, as 8463258452224 + 24550072768809 = 2909168^2 + 4954803^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33013331221033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33013331220992 and 33013331221010.

It is not an unprimeable number, because it can be changed into a prime (33013331221333) 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, 80753598 + ... + 81161383.

It is an arithmetic number, because the mean of its divisors is an integer number (4228166882457).

Almost surely, 2^{33013331221033} is an apocalyptic number.

It is an amenable number.

33013331221033 is a deficient number, since it is larger than the sum of its proper divisors (812003838623).

33013331221033 is a wasteful number, since it uses less digits than its factorization.

33013331221033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161919995.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 33013331221033 its reverse (33012213331033), we get a palindrome (66025544552066).

The spelling of 33013331221033 in words is "thirty-three trillion, thirteen billion, three hundred thirty-one million, two hundred twenty-one thousand, thirty-three".