221022110121112 has 32 divisors (see below), whose sum is σ = 424086405454800. Its totient is φ = 107932794205824.

The previous prime is 221022110121067. The next prime is 221022110121119. The reversal of 221022110121112 is 211121011220122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221022110121112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022110121119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19996803 + ... + 29015794.

Almost surely, 2^{221022110121112} is an apocalyptic number.

It is an amenable number.

221022110121112 is a deficient number, since it is larger than the sum of its proper divisors (203064295333688).

221022110121112 is a wasteful number, since it uses less digits than its factorization.

221022110121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49025755 (or 49025751 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 221022110121112 its reverse (211121011220122), we get a palindrome (432143121341234).

The spelling of 221022110121112 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred ten million, one hundred twenty-one thousand, one hundred twelve".