112121131220111 has 16 divisors (see below), whose sum is σ = 120790321497216. Its totient is φ = 103458299003136.

The previous prime is 112121131220069. The next prime is 112121131220143. The reversal of 112121131220111 is 111022131121211.

It is a cyclic number.

It is not a de Polignac number, because 112121131220111 - 2¹⁰ = 112121131219087 is a prime.

It is a super-2 number, since 2×112121131220111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121131220191) 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, 1898623061 + ... + 1898682113.

It is an arithmetic number, because the mean of its divisors is an integer number (7549395093576).

Almost surely, 2^{112121131220111} is an apocalyptic number.

112121131220111 is a deficient number, since it is larger than the sum of its proper divisors (8669190277105).

112121131220111 is a wasteful number, since it uses less digits than its factorization.

112121131220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110402.

The product of its (nonzero) digits is 48, while the sum is 20.

Adding to 112121131220111 its reverse (111022131121211), we get a palindrome (223143262341322).

The spelling of 112121131220111 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred thirty-one million, two hundred twenty thousand, one hundred eleven".