20130132202221 has 16 divisors (see below), whose sum is σ = 28010616491520. Its totient is φ = 12835012858800.

The previous prime is 20130132202217. The next prime is 20130132202273. The reversal of 20130132202221 is 12220223103102.

It is not a de Polignac number, because 20130132202221 - 2² = 20130132202217 is a prime.

It is a super-3 number, since 3×20130132202221³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130132402221) 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, 17544255 + ... + 18656396.

It is an arithmetic number, because the mean of its divisors is an integer number (1750663530720).

Almost surely, 2^{20130132202221} is an apocalyptic number.

It is an amenable number.

20130132202221 is a deficient number, since it is larger than the sum of its proper divisors (7880484289299).

20130132202221 is a wasteful number, since it uses less digits than its factorization.

20130132202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36208736.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20130132202221 its reverse (12220223103102), we get a palindrome (32350355305323).

The spelling of 20130132202221 in words is "twenty trillion, one hundred thirty billion, one hundred thirty-two million, two hundred two thousand, two hundred twenty-one".