33120223021 has 16 divisors (see below), whose sum is σ = 36351313920. Its totient is φ = 30040093440.

The previous prime is 33120223007. The next prime is 33120223043. The reversal of 33120223021 is 12032202133.

It is not a de Polignac number, because 33120223021 - 2²¹ = 33118125869 is a prime.

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 33120223021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33120223321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5526 + ... + 257431.

It is an arithmetic number, because the mean of its divisors is an integer number (2271957120).

Almost surely, 2^33120223021 is an apocalyptic number.

33120223021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33120223021 is a deficient number, since it is larger than the sum of its proper divisors (3231090899).

33120223021 is a wasteful number, since it uses less digits than its factorization.

33120223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263244.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33120223021 its reverse (12032202133), we get a palindrome (45152425154).

The spelling of 33120223021 in words is "thirty-three billion, one hundred twenty million, two hundred twenty-three thousand, twenty-one".