33244412221 has 8 divisors (see below), whose sum is σ = 35107773120. Its totient is φ = 31415880672.

The previous prime is 33244412213. The next prime is 33244412249. The reversal of 33244412221 is 12221444233.

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

It is a cyclic number.

It is not a de Polignac number, because 33244412221 - 2³ = 33244412213 is a prime.

It is a super-2 number, since 2×33244412221² (a number of 22 digits) contains 22 as substring.

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 33244412221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33244412251) 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, 8705376 + ... + 8709193.

It is an arithmetic number, because the mean of its divisors is an integer number (4388471640).

Almost surely, 2^33244412221 is an apocalyptic number.

It is an amenable number.

33244412221 is a deficient number, since it is larger than the sum of its proper divisors (1863360899).

33244412221 is a wasteful number, since it uses less digits than its factorization.

33244412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17414675.

The product of its digits is 9216, while the sum is 28.

Adding to 33244412221 its reverse (12221444233), we get a palindrome (45465856454).

The spelling of 33244412221 in words is "thirty-three billion, two hundred forty-four million, four hundred twelve thousand, two hundred twenty-one".