111310221201111 has 12 divisors (see below), whose sum is σ = 161288627569992. Its totient is φ = 73972723235856.

The previous prime is 111310221201107. The next prime is 111310221201163. The reversal of 111310221201111 is 111102122013111.

111310221201111 is a `hidden beast` number, since 1 + 1 + 1 + 310 + 221 + 20 + 1 + 111 = 666.

It is not a de Polignac number, because 111310221201111 - 2² = 111310221201107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111310221201511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19507571841 + ... + 19507577546.

It is an arithmetic number, because the mean of its divisors is an integer number (13440718964166).

Almost surely, 2^{111310221201111} is an apocalyptic number.

111310221201111 is a deficient number, since it is larger than the sum of its proper divisors (49978406368881).

111310221201111 is a wasteful number, since it uses less digits than its factorization.

111310221201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39015149710 (or 39015149707 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 111310221201111 its reverse (111102122013111), we get a palindrome (222412343214222).

The spelling of 111310221201111 in words is "one hundred eleven trillion, three hundred ten billion, two hundred twenty-one million, two hundred one thousand, one hundred eleven".