112212120121021 has 8 divisors (see below), whose sum is σ = 116087379033600. Its totient is φ = 108337252905840.

The previous prime is 112212120121009. The next prime is 112212120121051. The reversal of 112212120121021 is 120121021212211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112212120121021 is a prime.

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 112212120121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212120121051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97341445 + ... + 98487466.

It is an arithmetic number, because the mean of its divisors is an integer number (14510922379200).

Almost surely, 2^{112212120121021} is an apocalyptic number.

It is an amenable number.

112212120121021 is a deficient number, since it is larger than the sum of its proper divisors (3875258912579).

112212120121021 is a wasteful number, since it uses less digits than its factorization.

112212120121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195848699.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 112212120121021 its reverse (120121021212211), we get a palindrome (232333141333232).

The spelling of 112212120121021 in words is "one hundred twelve trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-one thousand, twenty-one".