20132120020221 has 64 divisors (see below), whose sum is σ = 32718843709440. Its totient is φ = 12133180667520.

The previous prime is 20132120020151. The next prime is 20132120020253. The reversal of 20132120020221 is 12202002123102.

20132120020221 is a `hidden beast` number, since 201 + 3 + 21 + 200 + 20 + 221 = 666.

It is not a de Polignac number, because 20132120020221 - 2¹¹ = 20132120018173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20132120020194 and 20132120020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132120020321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40686921 + ... + 41178753.

It is an arithmetic number, because the mean of its divisors is an integer number (511231932960).

Almost surely, 2^{20132120020221} is an apocalyptic number.

It is an amenable number.

20132120020221 is a deficient number, since it is larger than the sum of its proper divisors (12586723689219).

20132120020221 is a wasteful number, since it uses less digits than its factorization.

20132120020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492623 (or 492617 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20132120020221 its reverse (12202002123102), we get a palindrome (32334122143323).

The spelling of 20132120020221 in words is "twenty trillion, one hundred thirty-two billion, one hundred twenty million, twenty thousand, two hundred twenty-one".