111310221101 has 4 divisors (see below), whose sum is σ = 112331415900. Its totient is φ = 110289026304.

The previous prime is 111310221059. The next prime is 111310221107. The reversal of 111310221101 is 101122013111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49359508900 + 61950712201 = 222170^2 + 248899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111310221101 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 (111310221107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510597236 + ... + 510597453.

It is an arithmetic number, because the mean of its divisors is an integer number (28082853975).

Almost surely, 2^111310221101 is an apocalyptic number.

It is an amenable number.

111310221101 is a deficient number, since it is larger than the sum of its proper divisors (1021194799).

111310221101 is a wasteful number, since it uses less digits than its factorization.

111310221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021194798.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111310221101 its reverse (101122013111), we get a palindrome (212432234212).

The spelling of 111310221101 in words is "one hundred eleven billion, three hundred ten million, two hundred twenty-one thousand, one hundred one".