33120220331 has 4 divisors (see below), whose sum is σ = 36131149464. Its totient is φ = 30109291200.

The previous prime is 33120220261. The next prime is 33120220361. The reversal of 33120220331 is 13302202133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13302202133 = 11 ⋅1209291103.

It is a cyclic number.

It is not a de Polignac number, because 33120220331 - 2¹⁸ = 33119958187 is a prime.

It is a super-2 number, since 2×33120220331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33120220361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505464550 + ... + 1505464571.

It is an arithmetic number, because the mean of its divisors is an integer number (9032787366).

Almost surely, 2^33120220331 is an apocalyptic number.

33120220331 is a deficient number, since it is larger than the sum of its proper divisors (3010929133).

33120220331 is a wasteful number, since it uses less digits than its factorization.

33120220331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010929132.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33120220331 its reverse (13302202133), we get a palindrome (46422422464).

The spelling of 33120220331 in words is "thirty-three billion, one hundred twenty million, two hundred twenty thousand, three hundred thirty-one".