221101001001112 has 16 divisors (see below), whose sum is σ = 414884010186360. Its totient is φ = 110465264951424.

The previous prime is 221101001001091. The next prime is 221101001001119. The reversal of 221101001001112 is 211100100101122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221101001001092 and 221101001001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221101001001119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10654432618 + ... + 10654453369.

Almost surely, 2^{221101001001112} is an apocalyptic number.

It is an amenable number.

221101001001112 is a deficient number, since it is larger than the sum of its proper divisors (193783009185248).

221101001001112 is a wasteful number, since it uses less digits than its factorization.

221101001001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21308887290 (or 21308887286 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 221101001001112 its reverse (211100100101122), we get a palindrome (432201101102234).

The spelling of 221101001001112 in words is "two hundred twenty-one trillion, one hundred one billion, one million, one thousand, one hundred twelve".