112121221010202 has 48 divisors (see below), whose sum is σ = 249496195308360. Its totient is φ = 36363460553856.

The previous prime is 112121221010177. The next prime is 112121221010207. The reversal of 112121221010202 is 202010122121211.

112121221010202 is a `hidden beast` number, since 11 + 21 + 212 + 210 + 10 + 202 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 110014946417601 + 2106274592601 = 10488801^2 + 1451301^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (112121221010207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240334824 + ... + 240800892.

Almost surely, 2^{112121221010202} is an apocalyptic number.

112121221010202 is an abundant number, since it is smaller than the sum of its proper divisors (137374974298158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112121221010202 is a wasteful number, since it uses less digits than its factorization.

112121221010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827327 (or 827324 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 112121221010202 its reverse (202010122121211), we get a palindrome (314131343131413).

The spelling of 112121221010202 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred twenty-one million, ten thousand, two hundred two".