110221212122111 has 16 divisors (see below), whose sum is σ = 114908273323008. Its totient is φ = 105610110681600.

The previous prime is 110221212122027. The next prime is 110221212122137. The reversal of 110221212122111 is 111221212122011.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110221212122111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221212122611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42392561 + ... + 44917386.

It is an arithmetic number, because the mean of its divisors is an integer number (7181767082688).

Almost surely, 2^{110221212122111} is an apocalyptic number.

110221212122111 is a deficient number, since it is larger than the sum of its proper divisors (4687061200897).

110221212122111 is a wasteful number, since it uses less digits than its factorization.

110221212122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87310382.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 110221212122111 its reverse (111221212122011), we get a palindrome (221442424244122).

The spelling of 110221212122111 in words is "one hundred ten trillion, two hundred twenty-one billion, two hundred twelve million, one hundred twenty-two thousand, one hundred eleven".