121112102210111 has 8 divisors (see below), whose sum is σ = 124519082673600. Its totient is φ = 117739710381088.

The previous prime is 121112102210089. The next prime is 121112102210161. The reversal of 121112102210111 is 111012201211121.

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

It is a cyclic number.

It is not a de Polignac number, because 121112102210111 - 2¹⁴ = 121112102193727 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 121112102210111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112102210161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8647151516 + ... + 8647165521.

It is an arithmetic number, because the mean of its divisors is an integer number (15564885334200).

Almost surely, 2^{121112102210111} is an apocalyptic number.

121112102210111 is a deficient number, since it is larger than the sum of its proper divisors (3406980463489).

121112102210111 is a wasteful number, since it uses less digits than its factorization.

121112102210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294317233.

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

Adding to 121112102210111 its reverse (111012201211121), we get a palindrome (232124303421232).

The spelling of 121112102210111 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred two million, two hundred ten thousand, one hundred eleven".