33121330223233 has 4 divisors (see below), whose sum is σ = 37852948826560. Its totient is φ = 28389711619908.

The previous prime is 33121330223227. The next prime is 33121330223243. The reversal of 33121330223233 is 33232203312133.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33121330223233 is a prime.

It is a super-2 number, since 2×33121330223233² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33121330223195 and 33121330223204.

It is not an unprimeable number, because it can be changed into a prime (33121330223243) 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 3 ways as a sum of consecutive naturals, for example, 2365809301653 + ... + 2365809301666.

It is an arithmetic number, because the mean of its divisors is an integer number (9463237206640).

Almost surely, 2^{33121330223233} is an apocalyptic number.

It is an amenable number.

33121330223233 is a deficient number, since it is larger than the sum of its proper divisors (4731618603327).

33121330223233 is an equidigital number, since it uses as much as digits as its factorization.

33121330223233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731618603326.

The product of its (nonzero) digits is 34992, while the sum is 31.

Adding to 33121330223233 its reverse (33232203312133), we get a palindrome (66353533535366).

The spelling of 33121330223233 in words is "thirty-three trillion, one hundred twenty-one billion, three hundred thirty million, two hundred twenty-three thousand, two hundred thirty-three".