33020121405 has 16 divisors (see below), whose sum is σ = 52834469184. Its totient is φ = 17609973120.

The previous prime is 33020121403. The next prime is 33020121437. The reversal of 33020121405 is 50412102033.

It is not a de Polignac number, because 33020121405 - 2¹ = 33020121403 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33020121401) 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 15 ways as a sum of consecutive naturals, for example, 583410 + ... + 637500.

It is an arithmetic number, because the mean of its divisors is an integer number (3302154324).

Almost surely, 2^33020121405 is an apocalyptic number.

It is an amenable number.

33020121405 is a deficient number, since it is larger than the sum of its proper divisors (19814347779).

33020121405 is a wasteful number, since it uses less digits than its factorization.

33020121405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94796.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 33020121405 its reverse (50412102033), we get a palindrome (83432223438).

The spelling of 33020121405 in words is "thirty-three billion, twenty million, one hundred twenty-one thousand, four hundred five".