33220121333 has 16 divisors (see below), whose sum is σ = 38788279296. Its totient is φ = 27862410240.

The previous prime is 33220121293. The next prime is 33220121387. The reversal of 33220121333 is 33312102233.

It is a de Polignac number, because none of the positive numbers 2^k-33220121333 is a prime.

It is a super-2 number, since 2×33220121333² (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 = 33220121299 and 33220121308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220127333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119141 + ... + 283962.

It is an arithmetic number, because the mean of its divisors is an integer number (2424267456).

Almost surely, 2^33220121333 is an apocalyptic number.

It is an amenable number.

33220121333 is a deficient number, since it is larger than the sum of its proper divisors (5568157963).

33220121333 is a wasteful number, since it uses less digits than its factorization.

33220121333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403364.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 33220121333 its reverse (33312102233), we get a palindrome (66532223566).

The spelling of 33220121333 in words is "thirty-three billion, two hundred twenty million, one hundred twenty-one thousand, three hundred thirty-three".