221332111201201 has 72 divisors (see below), whose sum is σ = 304301051882784. Its totient is φ = 159116574839040.

The previous prime is 221332111201183. The next prime is 221332111201241. The reversal of 221332111201201 is 102102111233122.

It is a happy number.

It is not a de Polignac number, because 221332111201201 - 2¹⁷ = 221332111070129 is a prime.

It is a super-2 number, since 2×221332111201201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221332111201241) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 173622010 + ... + 174892156.

It is an arithmetic number, because the mean of its divisors is an integer number (4226403498372).

Almost surely, 2^{221332111201201} is an apocalyptic number.

It is an amenable number.

221332111201201 is a deficient number, since it is larger than the sum of its proper divisors (82968940681583).

221332111201201 is a wasteful number, since it uses less digits than its factorization.

221332111201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272111 (or 1272091 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 221332111201201 its reverse (102102111233122), we get a palindrome (323434222434323).

The spelling of 221332111201201 in words is "two hundred twenty-one trillion, three hundred thirty-two billion, one hundred eleven million, two hundred one thousand, two hundred one".