12251133115221 has 128 divisors (see below), whose sum is σ = 22777120751616. Its totient is φ = 5652402497280.

The previous prime is 12251133115211. The next prime is 12251133115241.

12251133115221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12251133115221 - 2⁷ = 12251133115093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12251133115211) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7943620 + ... + 9359666.

It is an arithmetic number, because the mean of its divisors is an integer number (177946255872).

Almost surely, 2^{12251133115221} is an apocalyptic number.

12251133115221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12251133115221 is a deficient number, since it is larger than the sum of its proper divisors (10525987636395).

12251133115221 is a wasteful number, since it uses less digits than its factorization.

12251133115221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416191.

The product of its digits is 3600, while the sum is 30.

The spelling of 12251133115221 in words is "twelve trillion, two hundred fifty-one billion, one hundred thirty-three million, one hundred fifteen thousand, two hundred twenty-one".