112121010121 has 16 divisors (see below), whose sum is σ = 119368214784. Its totient is φ = 105077104704.

The previous prime is 112121010059. The next prime is 112121010161. The reversal of 112121010121 is 121010121211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 112121010121 - 2¹³ = 112121001929 is a prime.

It is a super-2 number, since 2×112121010121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112121010161) 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, 822955 + ... + 949471.

It is an arithmetic number, because the mean of its divisors is an integer number (7460513424).

Almost surely, 2^112121010121 is an apocalyptic number.

It is an amenable number.

112121010121 is a deficient number, since it is larger than the sum of its proper divisors (7247204663).

112121010121 is a wasteful number, since it uses less digits than its factorization.

112121010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127320.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112121010121 its reverse (121010121211), we get a palindrome (233131131332).

The spelling of 112121010121 in words is "one hundred twelve billion, one hundred twenty-one million, ten thousand, one hundred twenty-one".