112121210221121 has 16 divisors (see below), whose sum is σ = 113475736581120. Its totient is φ = 110768806241280.

The previous prime is 112121210221103. The next prime is 112121210221169. The reversal of 112121210221121 is 121122012121211.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112121210221121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121210221093 and 112121210221102.

It is not an unprimeable number, because it can be changed into a prime (112121210221421) 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, 1319636081 + ... + 1319721041.

It is an arithmetic number, because the mean of its divisors is an integer number (7092233536320).

Almost surely, 2^{112121210221121} is an apocalyptic number.

It is an amenable number.

112121210221121 is a deficient number, since it is larger than the sum of its proper divisors (1354526359999).

112121210221121 is a wasteful number, since it uses less digits than its factorization.

112121210221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97264.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 112121210221121 its reverse (121122012121211), we get a palindrome (233243222342332).

The spelling of 112121210221121 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-one".