111001210102121 has 16 divisors (see below), whose sum is σ = 117025991153280. Its totient is φ = 105178915121280.

The previous prime is 111001210102093. The next prime is 111001210102163. The reversal of 111001210102121 is 121201012100111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111001210102121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111001210102096 and 111001210102105.

It is not an unprimeable number, because it can be changed into a prime (111001210107121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273426965 + ... + 273832626.

It is an arithmetic number, because the mean of its divisors is an integer number (7314124447080).

Almost surely, 2^{111001210102121} is an apocalyptic number.

It is an amenable number.

111001210102121 is a deficient number, since it is larger than the sum of its proper divisors (6024781051159).

111001210102121 is an equidigital number, since it uses as much as digits as its factorization.

111001210102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547259776.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111001210102121 its reverse (121201012100111), we get a palindrome (232202222202232).

The spelling of 111001210102121 in words is "one hundred eleven trillion, one billion, two hundred ten million, one hundred two thousand, one hundred twenty-one".