33220303121 has 4 divisors (see below), whose sum is σ = 33279309552. Its totient is φ = 33161296692.

The previous prime is 33220303117. The next prime is 33220303159. The reversal of 33220303121 is 12130302233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12130302233 = 7 ⋅1732900319.

It is a cyclic number.

It is not a de Polignac number, because 33220303121 - 2² = 33220303117 is a prime.

It is a super-2 number, since 2×33220303121² (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 = 33220303093 and 33220303102.

It is not an unprimeable number, because it can be changed into a prime (33220383121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29502371 + ... + 29503496.

It is an arithmetic number, because the mean of its divisors is an integer number (8319827388).

Almost surely, 2^33220303121 is an apocalyptic number.

It is an amenable number.

33220303121 is a deficient number, since it is larger than the sum of its proper divisors (59006431).

33220303121 is an equidigital number, since it uses as much as digits as its factorization.

33220303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59006430.

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

Adding to 33220303121 its reverse (12130302233), we get a palindrome (45350605354).

The spelling of 33220303121 in words is "thirty-three billion, two hundred twenty million, three hundred three thousand, one hundred twenty-one".