33121121101 has 4 divisors (see below), whose sum is σ = 33294530304. Its totient is φ = 32947711900.

The previous prime is 33121121093. The next prime is 33121121107. The reversal of 33121121101 is 10112112133.

It is a happy number.

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 not a de Polignac number, because 33121121101 - 2³ = 33121121093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33121121107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86704315 + ... + 86704696.

It is an arithmetic number, because the mean of its divisors is an integer number (8323632576).

Almost surely, 2^33121121101 is an apocalyptic number.

It is an amenable number.

33121121101 is a deficient number, since it is larger than the sum of its proper divisors (173409203).

33121121101 is a wasteful number, since it uses less digits than its factorization.

33121121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173409202.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 33121121101 its reverse (10112112133), we get a palindrome (43233233234).

The spelling of 33121121101 in words is "thirty-three billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred one".