221110122211102 has 4 divisors (see below), whose sum is σ = 331665183316656. Its totient is φ = 110555061105550.

The previous prime is 221110122211001. The next prime is 221110122211201. The reversal of 221110122211102 is 201112221011122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×221110122211102² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221110122211102.

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 as a sum of consecutive naturals, namely, 55277530552774 + ... + 55277530552777.

It is an arithmetic number, because the mean of its divisors is an integer number (82916295829164).

Almost surely, 2^{221110122211102} is an apocalyptic number.

221110122211102 is a deficient number, since it is larger than the sum of its proper divisors (110555061105554).

221110122211102 is a wasteful number, since it uses less digits than its factorization.

221110122211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110555061105553.

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

Adding to 221110122211102 its reverse (201112221011122), we get a palindrome (422222343222224).

The spelling of 221110122211102 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred twenty-two million, two hundred eleven thousand, one hundred two".