221111100002122 has 8 divisors (see below), whose sum is σ = 361818163639872. Its totient is φ = 100505045455500.

The previous prime is 221111100002101. The next prime is 221111100002147. The reversal of 221111100002122 is 221200001111122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221111100002096 and 221111100002105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5025252272754 + ... + 5025252272797.

It is an arithmetic number, because the mean of its divisors is an integer number (45227270454984).

Almost surely, 2^{221111100002122} is an apocalyptic number.

221111100002122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221111100002122 is a deficient number, since it is larger than the sum of its proper divisors (140707063637750).

221111100002122 is a wasteful number, since it uses less digits than its factorization.

221111100002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050504545564.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221111100002122 its reverse (221200001111122), we get a palindrome (442311101113244).

The spelling of 221111100002122 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred million, two thousand, one hundred twenty-two".