112020131221 has 8 divisors (see below), whose sum is σ = 112811811840. Its totient is φ = 111231034512.

The previous prime is 112020131203. The next prime is 112020131261. The reversal of 112020131221 is 122131020211.

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

It is a cyclic number.

It is not a de Polignac number, because 112020131221 - 2⁹ = 112020130709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112020131195 and 112020131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112020131261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558925 + ... + 732418.

It is an arithmetic number, because the mean of its divisors is an integer number (14101476480).

Almost surely, 2^112020131221 is an apocalyptic number.

It is an amenable number.

112020131221 is a deficient number, since it is larger than the sum of its proper divisors (791680619).

112020131221 is a wasteful number, since it uses less digits than its factorization.

112020131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291955.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 112020131221 its reverse (122131020211), we get a palindrome (234151151432).

The spelling of 112020131221 in words is "one hundred twelve billion, twenty million, one hundred thirty-one thousand, two hundred twenty-one".