221132202201 has 16 divisors (see below), whose sum is σ = 327610550400. Its totient is φ = 147418188624.

The previous prime is 221132202191. The next prime is 221132202233. The reversal of 221132202201 is 102202231122.

221132202201 is a `hidden beast` number, since 221 + 1 + 3 + 220 + 220 + 1 = 666.

It is not a de Polignac number, because 221132202201 - 2¹⁰ = 221132201177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221132202241) 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, 2127300 + ... + 2228826.

It is an arithmetic number, because the mean of its divisors is an integer number (20475659400).

Almost surely, 2^221132202201 is an apocalyptic number.

It is an amenable number.

221132202201 is a deficient number, since it is larger than the sum of its proper divisors (106478348199).

221132202201 is a wasteful number, since it uses less digits than its factorization.

221132202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182205 (or 182199 counting only the distinct ones).

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

Adding to 221132202201 its reverse (102202231122), we get a palindrome (323334433323).

The spelling of 221132202201 in words is "two hundred twenty-one billion, one hundred thirty-two million, two hundred two thousand, two hundred one".