112111002012221 has 8 divisors (see below), whose sum is σ = 112572408382200. Its totient is φ = 111649926286080.

The previous prime is 112111002012173. The next prime is 112111002012241. The reversal of 112111002012221 is 122210200111211.

It can be written as a sum of positive squares in 4 ways, for example, as 12870952687321 + 99240049324900 = 3587611^2 + 9961930^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112111002012221 is a prime.

It is a super-2 number, since 2×112111002012221² (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 112111002012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111002012241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81981416 + ... + 83337713.

It is an arithmetic number, because the mean of its divisors is an integer number (14071551047775).

Almost surely, 2^{112111002012221} is an apocalyptic number.

It is an amenable number.

112111002012221 is a deficient number, since it is larger than the sum of its proper divisors (461406369979).

112111002012221 is a wasteful number, since it uses less digits than its factorization.

112111002012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165321919.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112111002012221 its reverse (122210200111211), we get a palindrome (234321202123432).

The spelling of 112111002012221 in words is "one hundred twelve trillion, one hundred eleven billion, two million, twelve thousand, two hundred twenty-one".