201220130221 has 16 divisors (see below), whose sum is σ = 221495145408. Its totient is φ = 181276076800.

The previous prime is 201220130219. The next prime is 201220130273. The reversal of 201220130221 is 122031022102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201220130221 - 2¹ = 201220130219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201220130195 and 201220130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220134221) 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, 9362730 + ... + 9384196.

It is an arithmetic number, because the mean of its divisors is an integer number (13843446588).

Almost surely, 2^201220130221 is an apocalyptic number.

It is an amenable number.

201220130221 is a deficient number, since it is larger than the sum of its proper divisors (20275015187).

201220130221 is a wasteful number, since it uses less digits than its factorization.

201220130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29132.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201220130221 its reverse (122031022102), we get a palindrome (323251152323).

The spelling of 201220130221 in words is "two hundred one billion, two hundred twenty million, one hundred thirty thousand, two hundred twenty-one".