121111002102112 has 48 divisors (see below), whose sum is σ = 261192711147984. Its totient is φ = 54822030336000.

The previous prime is 121111002102047. The next prime is 121111002102119. The reversal of 121111002102112 is 211201200111121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111002102119) 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, 713743689 + ... + 713913352.

It is an arithmetic number, because the mean of its divisors is an integer number (5441514815583).

Almost surely, 2^{121111002102112} is an apocalyptic number.

It is an amenable number.

121111002102112 is an abundant number, since it is smaller than the sum of its proper divisors (140081709045872).

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

121111002102112 is a wasteful number, since it uses less digits than its factorization.

121111002102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427657303 (or 1427657295 counting only the distinct ones).

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

Adding to 121111002102112 its reverse (211201200111121), we get a palindrome (332312202213233).

The spelling of 121111002102112 in words is "one hundred twenty-one trillion, one hundred eleven billion, two million, one hundred two thousand, one hundred twelve".