112121222011 has 4 divisors (see below), whose sum is σ = 113700394224. Its totient is φ = 110542049800.

The previous prime is 112121221969. The next prime is 112121222033. The reversal of 112121222011 is 110222121211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110222121211 = 1303 ⋅84591037.

It is a cyclic number.

It is not a de Polignac number, because 112121222011 - 2³⁵ = 77761483643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112121222041) 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, 789586000 + ... + 789586141.

It is an arithmetic number, because the mean of its divisors is an integer number (28425098556).

Almost surely, 2^112121222011 is an apocalyptic number.

112121222011 is a deficient number, since it is larger than the sum of its proper divisors (1579172213).

112121222011 is an equidigital number, since it uses as much as digits as its factorization.

112121222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579172212.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112121222011 its reverse (110222121211), we get a palindrome (222343343222).

The spelling of 112121222011 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, eleven".