121112212111102 has 8 divisors (see below), whose sum is σ = 184646487317112. Its totient is φ = 59563383005400.

The previous prime is 121112212111087. The next prime is 121112212111181. The reversal of 121112212111102 is 201111212211121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121112212111102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496361524924 + ... + 496361525167.

It is an arithmetic number, because the mean of its divisors is an integer number (23080810914639).

Almost surely, 2^{121112212111102} is an apocalyptic number.

121112212111102 is a deficient number, since it is larger than the sum of its proper divisors (63534275206010).

121112212111102 is an equidigital number, since it uses as much as digits as its factorization.

121112212111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992723050154.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 121112212111102 its reverse (201111212211121), we get a palindrome (322223424322223).

The spelling of 121112212111102 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twelve million, one hundred eleven thousand, one hundred two".