112121101202111 has 4 divisors (see below), whose sum is σ = 112586333987424. Its totient is φ = 111655868416800.

The previous prime is 112121101202017. The next prime is 112121101202197. The reversal of 112121101202111 is 111202101121211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112121101202111 is a prime.

It is a super-2 number, since 2×112121101202111² (a number of 29 digits) contains 22 as substring.

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 112121101202111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121101202911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232616392295 + ... + 232616392776.

It is an arithmetic number, because the mean of its divisors is an integer number (28146583496856).

Almost surely, 2^{112121101202111} is an apocalyptic number.

112121101202111 is a deficient number, since it is larger than the sum of its proper divisors (465232785313).

112121101202111 is an equidigital number, since it uses as much as digits as its factorization.

112121101202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465232785312.

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

Adding to 112121101202111 its reverse (111202101121211), we get a palindrome (223323202323322).

The spelling of 112121101202111 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred one million, two hundred two thousand, one hundred eleven".