112002202021221 has 36 divisors (see below), whose sum is σ = 171730852240428. Its totient is φ = 70329340983168.

The previous prime is 112002202021217. The next prime is 112002202021271. The reversal of 112002202021221 is 122120202200211.

It is a happy number.

112002202021221 is a `hidden beast` number, since 1 + 1 + 20 + 0 + 220 + 202 + 1 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62772122568996 + 49230079452225 = 7922886^2 + 7016415^2 .

It is not a de Polignac number, because 112002202021221 - 2² = 112002202021217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112002202021194 and 112002202021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112002202021271) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 99070360 + ... + 100194513.

It is an arithmetic number, because the mean of its divisors is an integer number (4770301451123).

Almost surely, 2^{112002202021221} is an apocalyptic number.

It is an amenable number.

112002202021221 is a deficient number, since it is larger than the sum of its proper divisors (59728650219207).

112002202021221 is a wasteful number, since it uses less digits than its factorization.

112002202021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199265090 (or 199265068 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112002202021221 its reverse (122120202200211), we get a palindrome (234122404221432).

The spelling of 112002202021221 in words is "one hundred twelve trillion, two billion, two hundred two million, twenty-one thousand, two hundred twenty-one".