13132121132221 has 16 divisors (see below), whose sum is σ = 16239210698368. Its totient is φ = 10341006782400.

The previous prime is 13132121132189. The next prime is 13132121132243. The reversal of 13132121132221 is 12223112123131.

It is not a de Polignac number, because 13132121132221 - 2⁵ = 13132121132189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132121132821) 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, 341945310 + ... + 341983711.

It is an arithmetic number, because the mean of its divisors is an integer number (1014950668648).

Almost surely, 2^{13132121132221} is an apocalyptic number.

It is an amenable number.

13132121132221 is a deficient number, since it is larger than the sum of its proper divisors (3107089566147).

13132121132221 is a wasteful number, since it uses less digits than its factorization.

13132121132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683929252.

The product of its digits is 864, while the sum is 25.

Adding to 13132121132221 its reverse (12223112123131), we get a palindrome (25355233255352).

The spelling of 13132121132221 in words is "thirteen trillion, one hundred thirty-two billion, one hundred twenty-one million, one hundred thirty-two thousand, two hundred twenty-one".