22253521333321 has 4 divisors (see below), whose sum is σ = 22254555296272. Its totient is φ = 22252487370372.

The previous prime is 22253521333223. The next prime is 22253521333361. The reversal of 22253521333321 is 12333312535222.

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 22253521333321 - 2²⁵ = 22253487778889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22253521333361) 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, 516949191 + ... + 516992236.

It is an arithmetic number, because the mean of its divisors is an integer number (5563638824068).

Almost surely, 2^{22253521333321} is an apocalyptic number.

It is an amenable number.

22253521333321 is a deficient number, since it is larger than the sum of its proper divisors (1033962951).

22253521333321 is a wasteful number, since it uses less digits than its factorization.

22253521333321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033962950.

The product of its digits is 194400, while the sum is 37.

Adding to 22253521333321 its reverse (12333312535222), we get a palindrome (34586833868543).

The spelling of 22253521333321 in words is "twenty-two trillion, two hundred fifty-three billion, five hundred twenty-one million, three hundred thirty-three thousand, three hundred twenty-one".