221222022220112 has 20 divisors (see below), whose sum is σ = 428661019998336. Its totient is φ = 110599823510880.

The previous prime is 221222022220079. The next prime is 221222022220151. The reversal of 221222022220112 is 211022220222122.

It is a super-3 number, since 3×221222022220112³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699061814 + ... + 699378197.

Almost surely, 2^{221222022220112} is an apocalyptic number.

It is an amenable number.

221222022220112 is a deficient number, since it is larger than the sum of its proper divisors (207438997778224).

221222022220112 is a wasteful number, since it uses less digits than its factorization.

221222022220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398449906 (or 1398449900 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 221222022220112 its reverse (211022220222122), we get a palindrome (432244242442234).

The spelling of 221222022220112 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, twenty-two million, two hundred twenty thousand, one hundred twelve".