33121005101 has 4 divisors (see below), whose sum is σ = 33243223104. Its totient is φ = 32998787100.

The previous prime is 33121005061. The next prime is 33121005163. The reversal of 33121005101 is 10150012133.

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 33121005101 - 2⁶ = 33121005037 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 33121005101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33121005601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61108595 + ... + 61109136.

It is an arithmetic number, because the mean of its divisors is an integer number (8310805776).

Almost surely, 2^33121005101 is an apocalyptic number.

It is an amenable number.

33121005101 is a deficient number, since it is larger than the sum of its proper divisors (122218003).

33121005101 is a wasteful number, since it uses less digits than its factorization.

33121005101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122218002.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 33121005101 its reverse (10150012133), we get a palindrome (43271017234).

The spelling of 33121005101 in words is "thirty-three billion, one hundred twenty-one million, five thousand, one hundred one".