112121202121 has 8 divisors (see below), whose sum is σ = 116038681920. Its totient is φ = 108207137808.

The previous prime is 112121202113. The next prime is 112121202209. The reversal of 112121202121 is 121202121211.

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 112121202121 - 2³ = 112121202113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121202095 and 112121202104.

It is not an unprimeable number, because it can be changed into a prime (112121202421) 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, 786981 + ... + 918466.

It is an arithmetic number, because the mean of its divisors is an integer number (14504835240).

Almost surely, 2^112121202121 is an apocalyptic number.

It is an amenable number.

112121202121 is a deficient number, since it is larger than the sum of its proper divisors (3917479799).

112121202121 is a wasteful number, since it uses less digits than its factorization.

112121202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707743.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112121202121 its reverse (121202121211), we get a palindrome (233323323332).

The spelling of 112121202121 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-one".