221111120111102 has 16 divisors (see below), whose sum is σ = 363233391580080. Its totient is φ = 100321603387392.

The previous prime is 221111120111083. The next prime is 221111120111239. The reversal of 221111120111102 is 201111021111122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72070115843 + ... + 72070118910.

It is an arithmetic number, because the mean of its divisors is an integer number (22702086973755).

Almost surely, 2^{221111120111102} is an apocalyptic number.

221111120111102 is a deficient number, since it is larger than the sum of its proper divisors (142122271468978).

221111120111102 is a wasteful number, since it uses less digits than its factorization.

221111120111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144140234827.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 221111120111102 its reverse (201111021111122), we get a palindrome (422222141222224).

The spelling of 221111120111102 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred twenty million, one hundred eleven thousand, one hundred two".