121101211101112 has 16 divisors (see below), whose sum is σ = 247707022707000. Its totient is φ = 55046005045920.

The previous prime is 121101211101077. The next prime is 121101211101113. The reversal of 121101211101112 is 211101112101121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101211101113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688075062987 + ... + 688075063162.

Almost surely, 2^{121101211101112} is an apocalyptic number.

It is an amenable number.

121101211101112 is an abundant number, since it is smaller than the sum of its proper divisors (126605811605888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121101211101112 is a wasteful number, since it uses less digits than its factorization.

121101211101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376150126166 (or 1376150126162 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 121101211101112 its reverse (211101112101121), we get a palindrome (332202323202233).

The spelling of 121101211101112 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred eleven million, one hundred one thousand, one hundred twelve".