111121012202111 has 8 divisors (see below), whose sum is σ = 111608492928000. Its totient is φ = 110633719303800.

The previous prime is 111121012202093. The next prime is 111121012202117. The reversal of 111121012202111 is 111202210121111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111121012202111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111121012202111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121012202117) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 45771011 + ... + 48137588.

It is an arithmetic number, because the mean of its divisors is an integer number (13951061616000).

Almost surely, 2^{111121012202111} is an apocalyptic number.

111121012202111 is a deficient number, since it is larger than the sum of its proper divisors (487480725889).

111121012202111 is an equidigital number, since it uses as much as digits as its factorization.

111121012202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93913789.

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

Adding to 111121012202111 its reverse (111202210121111), we get a palindrome (222323222323222).

The spelling of 111121012202111 in words is "one hundred eleven trillion, one hundred twenty-one billion, twelve million, two hundred two thousand, one hundred eleven".