121112220110111 has 8 divisors (see below), whose sum is σ = 121121878871520. Its totient is φ = 121102561783648.

The previous prime is 121112220110033. The next prime is 121112220110153. The reversal of 121112220110111 is 111011022211121.

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 121112220110111 - 2²² = 121112215915807 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 121112220110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112220110411) 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, 744413705 + ... + 744576381.

It is an arithmetic number, because the mean of its divisors is an integer number (15140234858940).

Almost surely, 2^{121112220110111} is an apocalyptic number.

121112220110111 is a deficient number, since it is larger than the sum of its proper divisors (9658761409).

121112220110111 is a wasteful number, since it uses less digits than its factorization.

121112220110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217473.

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

Adding to 121112220110111 its reverse (111011022211121), we get a palindrome (232123242321232).

The spelling of 121112220110111 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty million, one hundred ten thousand, one hundred eleven".