33121013223 has 8 divisors (see below), whose sum is σ = 45100954368. Its totient is φ = 21610873784.

The previous prime is 33121013183. The next prime is 33121013323. The reversal of 33121013223 is 32231012133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33121013223 - 2²¹ = 33118916071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33121013223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33121013323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117450261 + ... + 117450542.

It is an arithmetic number, because the mean of its divisors is an integer number (5637619296).

Almost surely, 2^33121013223 is an apocalyptic number.

33121013223 is a deficient number, since it is larger than the sum of its proper divisors (11979941145).

33121013223 is a wasteful number, since it uses less digits than its factorization.

33121013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234900853.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 33121013223 its reverse (32231012133), we get a palindrome (65352025356).

The spelling of 33121013223 in words is "thirty-three billion, one hundred twenty-one million, thirteen thousand, two hundred twenty-three".