221102021101112 has 32 divisors (see below), whose sum is σ = 415077778502400. Its totient is φ = 110414671192800.

The previous prime is 221102021101099. The next prime is 221102021101127. The reversal of 221102021101112 is 211101120201122.

It is a super-2 number, since 2×221102021101112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27076187 + ... + 34282997.

It is an arithmetic number, because the mean of its divisors is an integer number (12971180578200).

Almost surely, 2^{221102021101112} is an apocalyptic number.

It is an amenable number.

221102021101112 is a deficient number, since it is larger than the sum of its proper divisors (193975757401288).

221102021101112 is a wasteful number, since it uses less digits than its factorization.

221102021101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7211547 (or 7211543 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221102021101112 its reverse (211101120201122), we get a palindrome (432203141302234).

The spelling of 221102021101112 in words is "two hundred twenty-one trillion, one hundred two billion, twenty-one million, one hundred one thousand, one hundred twelve".