33113012220989 has 4 divisors (see below), whose sum is σ = 33674249716320. Its totient is φ = 32551774725660.

The previous prime is 33113012220979. The next prime is 33113012221013. The reversal of 33113012220989 is 98902221031133.

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-33113012220989 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 (33113012220919) 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, 280618747577 + ... + 280618747694.

It is an arithmetic number, because the mean of its divisors is an integer number (8418562429080).

Almost surely, 2^{33113012220989} is an apocalyptic number.

It is an amenable number.

33113012220989 is a deficient number, since it is larger than the sum of its proper divisors (561237495331).

33113012220989 is an equidigital number, since it uses as much as digits as its factorization.

33113012220989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561237495330.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 33113012220989 in words is "thirty-three trillion, one hundred thirteen billion, twelve million, two hundred twenty thousand, nine hundred eighty-nine".