211110012110121 has 8 divisors (see below), whose sum is σ = 281972975897184. Its totient is φ = 140493528198240.

The previous prime is 211110012110113. The next prime is 211110012110167. The reversal of 211110012110121 is 121011210011112.

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

It is not a de Polignac number, because 211110012110121 - 2³ = 211110012110113 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211110012110121.

It is not an unprimeable number, because it can be changed into a prime (211110012110111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61619966796 + ... + 61619970221.

It is an arithmetic number, because the mean of its divisors is an integer number (35246621987148).

Almost surely, 2^{211110012110121} is an apocalyptic number.

It is an amenable number.

211110012110121 is a deficient number, since it is larger than the sum of its proper divisors (70862963787063).

211110012110121 is a wasteful number, since it uses less digits than its factorization.

211110012110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123239937591.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 211110012110121 its reverse (121011210011112), we get a palindrome (332121222121233).

The spelling of 211110012110121 in words is "two hundred eleven trillion, one hundred ten billion, twelve million, one hundred ten thousand, one hundred twenty-one".