111201200221101 has 16 divisors (see below), whose sum is σ = 156072368486400. Its totient is φ = 70232108144688.

The previous prime is 111201200221079. The next prime is 111201200221157. The reversal of 111201200221101 is 101122002102111.

It is a happy number.

It is not a de Polignac number, because 111201200221101 - 2²¹ = 111201198123949 is a prime.

It is a super-2 number, since 2×111201200221101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201200121101) 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, 15414850 + ... + 21448076.

It is an arithmetic number, because the mean of its divisors is an integer number (9754523030400).

Almost surely, 2^{111201200221101} is an apocalyptic number.

It is an amenable number.

111201200221101 is a deficient number, since it is larger than the sum of its proper divisors (44871168265299).

111201200221101 is a wasteful number, since it uses less digits than its factorization.

111201200221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356608.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111201200221101 its reverse (101122002102111), we get a palindrome (212323202323212).

The spelling of 111201200221101 in words is "one hundred eleven trillion, two hundred one billion, two hundred million, two hundred twenty-one thousand, one hundred one".