112121200200221 has 4 divisors (see below), whose sum is σ = 112190883980700. Its totient is φ = 112051516419744.

The previous prime is 112121200200073. The next prime is 112121200200241. The reversal of 112121200200221 is 122002002121211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51122929000900 + 60998271199321 = 7150030^2 + 7810139^2 .

It is a cyclic number.

It is not a de Polignac number, because 112121200200221 - 2³⁰ = 112120126458397 is a prime.

It is a super-2 number, since 2×112121200200221² (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 112121200200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121200200241) 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 3 ways as a sum of consecutive naturals, for example, 34841887826 + ... + 34841891043.

It is an arithmetic number, because the mean of its divisors is an integer number (28047720995175).

Almost surely, 2^{112121200200221} is an apocalyptic number.

It is an amenable number.

112121200200221 is a deficient number, since it is larger than the sum of its proper divisors (69683780479).

112121200200221 is an equidigital number, since it uses as much as digits as its factorization.

112121200200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69683780478.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 112121200200221 its reverse (122002002121211), we get a palindrome (234123202321432).

The spelling of 112121200200221 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred million, two hundred thousand, two hundred twenty-one".