112221120121221 has 8 divisors (see below), whose sum is σ = 150184398676320. Its totient is φ = 74535960823472.

The previous prime is 112221120121219. The next prime is 112221120121259. The reversal of 112221120121221 is 122121021122211.

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 112221120121221 - 2¹ = 112221120121219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221120121021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69529813395 + ... + 69529815008.

It is an arithmetic number, because the mean of its divisors is an integer number (18773049834540).

Almost surely, 2^{112221120121221} is an apocalyptic number.

It is an amenable number.

112221120121221 is a deficient number, since it is larger than the sum of its proper divisors (37963278555099).

112221120121221 is a wasteful number, since it uses less digits than its factorization.

112221120121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139059628675.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 112221120121221 its reverse (122121021122211), we get a palindrome (234342141243432).

The spelling of 112221120121221 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred twenty-one".