221120101112 has 8 divisors (see below), whose sum is σ = 414600189600. Its totient is φ = 110560050552.

The previous prime is 221120101099. The next prime is 221120101123. The reversal of 221120101112 is 211101021122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×221120101112² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13820006312 + ... + 13820006327.

It is an arithmetic number, because the mean of its divisors is an integer number (51825023700).

Almost surely, 2^221120101112 is an apocalyptic number.

It is an amenable number.

221120101112 is a deficient number, since it is larger than the sum of its proper divisors (193480088488).

221120101112 is a wasteful number, since it uses less digits than its factorization.

221120101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27640012645 (or 27640012641 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221120101112 its reverse (211101021122), we get a palindrome (432221122234).

The spelling of 221120101112 in words is "two hundred twenty-one billion, one hundred twenty million, one hundred one thousand, one hundred twelve".