112111102021121 has 16 divisors (see below), whose sum is σ = 129360272745984. Its totient is φ = 95173495893504.

The previous prime is 112111102021111. The next prime is 112111102021123. The reversal of 112111102021121 is 121120201111211.

It is not a de Polignac number, because 112111102021121 - 2¹⁸ = 112111101758977 is a prime.

It is a super-2 number, since 2×112111102021121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112111102021121.

It is not an unprimeable number, because it can be changed into a prime (112111102021123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134578025 + ... + 135408518.

It is an arithmetic number, because the mean of its divisors is an integer number (8085017046624).

Almost surely, 2^{112111102021121} is an apocalyptic number.

It is an amenable number.

112111102021121 is a deficient number, since it is larger than the sum of its proper divisors (17249170724863).

112111102021121 is a wasteful number, since it uses less digits than its factorization.

112111102021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269987120.

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

Adding to 112111102021121 its reverse (121120201111211), we get a palindrome (233231303132332).

The spelling of 112111102021121 in words is "one hundred twelve trillion, one hundred eleven billion, one hundred two million, twenty-one thousand, one hundred twenty-one".