221110002212122 has 16 divisors (see below), whose sum is σ = 332624345713632. Its totient is φ = 110235227081200.

The previous prime is 221110002212053. The next prime is 221110002212149. The reversal of 221110002212122 is 221212200011122.

It is a self number, because there is not a number n which added to its sum of digits gives 221110002212122.

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, 65569788 + ... + 68859400.

It is an arithmetic number, because the mean of its divisors is an integer number (20789021607102).

Almost surely, 2^{221110002212122} is an apocalyptic number.

221110002212122 is a deficient number, since it is larger than the sum of its proper divisors (111514343501510).

221110002212122 is a wasteful number, since it uses less digits than its factorization.

221110002212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386813.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221110002212122 its reverse (221212200011122), we get a palindrome (442322202223244).

The spelling of 221110002212122 in words is "two hundred twenty-one trillion, one hundred ten billion, two million, two hundred twelve thousand, one hundred twenty-two".