33321144412421 has 16 divisors (see below), whose sum is σ = 35131232048640. Its totient is φ = 31516696134000.

The previous prime is 33321144412399. The next prime is 33321144412429. The reversal of 33321144412421 is 12421444112333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33321144412421 is a prime.

It is a super-2 number, since 2×33321144412421² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33321144412429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287811296 + ... + 287927046.

It is an arithmetic number, because the mean of its divisors is an integer number (2195702003040).

Almost surely, 2^{33321144412421} is an apocalyptic number.

It is an amenable number.

33321144412421 is a deficient number, since it is larger than the sum of its proper divisors (1810087636219).

33321144412421 is a wasteful number, since it uses less digits than its factorization.

33321144412421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139976.

The product of its digits is 55296, while the sum is 35.

Adding to 33321144412421 its reverse (12421444112333), we get a palindrome (45742588524754).

The spelling of 33321144412421 in words is "thirty-three trillion, three hundred twenty-one billion, one hundred forty-four million, four hundred twelve thousand, four hundred twenty-one".