221222120110222 has 96 divisors (see below), whose sum is σ = 431245623836160. Its totient is φ = 83213865134400.

The previous prime is 221222120110219. The next prime is 221222120110267. The reversal of 221222120110222 is 222011021222122.

It is a super-2 number, since 2×221222120110222² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 221222120110193 and 221222120110202.

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 47 ways as a sum of consecutive naturals, for example, 993756813 + ... + 993979399.

It is an arithmetic number, because the mean of its divisors is an integer number (4492141914960).

Almost surely, 2^{221222120110222} is an apocalyptic number.

221222120110222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221222120110222 is a deficient number, since it is larger than the sum of its proper divisors (210023503725938).

221222120110222 is a wasteful number, since it uses less digits than its factorization.

221222120110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242878 (or 242867 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221222120110222 its reverse (222011021222122), we get a palindrome (443233141332344).

The spelling of 221222120110222 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred ten thousand, two hundred twenty-two".