112143214121021 has 4 divisors (see below), whose sum is σ = 112143240665052. Its totient is φ = 112143187576992.

The previous prime is 112143214120997. The next prime is 112143214121027. The reversal of 112143214121021 is 120121412341211.

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 44399433624100 + 67743780496921 = 6663290^2 + 8230661^2 .

It is a cyclic number.

It is not a de Polignac number, because 112143214121021 - 2²² = 112143209926717 is a prime.

It is a super-2 number, since 2×112143214121021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112143214121027) 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, 5364290 + ... + 15907923.

It is an arithmetic number, because the mean of its divisors is an integer number (28035810166263).

Almost surely, 2^{112143214121021} is an apocalyptic number.

It is an amenable number.

112143214121021 is a deficient number, since it is larger than the sum of its proper divisors (26544031).

112143214121021 is an equidigital number, since it uses as much as digits as its factorization.

112143214121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26544030.

The product of its (nonzero) digits is 768, while the sum is 26.

Adding to 112143214121021 its reverse (120121412341211), we get a palindrome (232264626462232).

The spelling of 112143214121021 in words is "one hundred twelve trillion, one hundred forty-three billion, two hundred fourteen million, one hundred twenty-one thousand, twenty-one".