112212221012121 has 16 divisors (see below), whose sum is σ = 158533822192640. Its totient is φ = 70401532870800.

The previous prime is 112212221012113. The next prime is 112212221012123. The reversal of 112212221012121 is 121210122212211.

It is not a de Polignac number, because 112212221012121 - 2³ = 112212221012113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112212221012123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6518651845 + ... + 6518669058.

It is an arithmetic number, because the mean of its divisors is an integer number (9908363887040).

Almost surely, 2^{112212221012121} is an apocalyptic number.

It is an amenable number.

112212221012121 is a deficient number, since it is larger than the sum of its proper divisors (46321601180519).

112212221012121 is a wasteful number, since it uses less digits than its factorization.

112212221012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13037321076.

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

Adding to 112212221012121 its reverse (121210122212211), we get a palindrome (233422343224332).

The spelling of 112212221012121 in words is "one hundred twelve trillion, two hundred twelve billion, two hundred twenty-one million, twelve thousand, one hundred twenty-one".