112120012221 has 16 divisors (see below), whose sum is σ = 171356525184. Its totient is φ = 63878459904.

The previous prime is 112120012189. The next prime is 112120012241. The reversal of 112120012221 is 122210021211.

It is not a de Polignac number, because 112120012221 - 2⁵ = 112120012189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112120012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120012241) 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, 7914360 + ... + 7928513.

It is an arithmetic number, because the mean of its divisors is an integer number (10709782824).

Almost surely, 2^112120012221 is an apocalyptic number.

It is an amenable number.

112120012221 is a deficient number, since it is larger than the sum of its proper divisors (59236512963).

112120012221 is a wasteful number, since it uses less digits than its factorization.

112120012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843220.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112120012221 its reverse (122210021211), we get a palindrome (234330033432).

The spelling of 112120012221 in words is "one hundred twelve billion, one hundred twenty million, twelve thousand, two hundred twenty-one".