33040223031621 has 8 divisors (see below), whose sum is σ = 47442371532640. Its totient is φ = 20332444942512.

The previous prime is 33040223031511. The next prime is 33040223031643. The reversal of 33040223031621 is 12613032204033.

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

It is not a de Polignac number, because 33040223031621 - 2¹¹ = 33040223029573 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 (33040223031671) 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, 423592602931 + ... + 423592603008.

It is an arithmetic number, because the mean of its divisors is an integer number (5930296441580).

Almost surely, 2^{33040223031621} is an apocalyptic number.

It is an amenable number.

33040223031621 is a deficient number, since it is larger than the sum of its proper divisors (14402148501019).

33040223031621 is a wasteful number, since it uses less digits than its factorization.

33040223031621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847185205955.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 33040223031621 its reverse (12613032204033), we get a palindrome (45653255235654).

The spelling of 33040223031621 in words is "thirty-three trillion, forty billion, two hundred twenty-three million, thirty-one thousand, six hundred twenty-one".