12253533535221 has 16 divisors (see below), whose sum is σ = 18305032899648. Its totient is φ = 7225670880000.

The previous prime is 12253533535211. The next prime is 12253533535247.

12253533535221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12253533535221 - 2¹¹ = 12253533533173 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12253533535211) 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, 5017825780 + ... + 5017828221.

It is an arithmetic number, because the mean of its divisors is an integer number (1144064556228).

Almost surely, 2^{12253533535221} is an apocalyptic number.

12253533535221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12253533535221 is a deficient number, since it is larger than the sum of its proper divisors (6051499364427).

12253533535221 is a wasteful number, since it uses less digits than its factorization.

12253533535221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10035654052.

The product of its digits is 810000, while the sum is 42.

The spelling of 12253533535221 in words is "twelve trillion, two hundred fifty-three billion, five hundred thirty-three million, five hundred thirty-five thousand, two hundred twenty-one".