201101323221 has 12 divisors (see below), whose sum is σ = 290816293248. Its totient is φ = 133912193064.

The previous prime is 201101323201. The next prime is 201101323271. The reversal of 201101323221 is 122323101102.

201101323221 is a `hidden beast` number, since 20 + 1 + 101 + 323 + 221 = 666.

It is not a de Polignac number, because 201101323221 - 2³¹ = 198953839573 is a prime.

It is a super-2 number, since 2×201101323221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201101323194 and 201101323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201101323201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12938115 + ... + 12953648.

It is an arithmetic number, because the mean of its divisors is an integer number (24234691104).

Almost surely, 2^201101323221 is an apocalyptic number.

It is an amenable number.

201101323221 is a deficient number, since it is larger than the sum of its proper divisors (89714970027).

201101323221 is a wasteful number, since it uses less digits than its factorization.

201101323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25892632 (or 25892629 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201101323221 its reverse (122323101102), we get a palindrome (323424424323).

The spelling of 201101323221 in words is "two hundred one billion, one hundred one million, three hundred twenty-three thousand, two hundred twenty-one".