112121009998 has 8 divisors (see below), whose sum is σ = 168214004280. Its totient is φ = 56049675240.

The previous prime is 112121009977. The next prime is 112121009999. The reversal of 112121009998 is 899900121211.

It is a happy number.

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

It is a super-2 number, since 2×112121009998² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121009999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5401933 + ... + 5422648.

It is an arithmetic number, because the mean of its divisors is an integer number (21026750535).

Almost surely, 2^112121009998 is an apocalyptic number.

112121009998 is a deficient number, since it is larger than the sum of its proper divisors (56092994282).

112121009998 is a wasteful number, since it uses less digits than its factorization.

112121009998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10829762.

The product of its (nonzero) digits is 23328, while the sum is 43.

The spelling of 112121009998 in words is "one hundred twelve billion, one hundred twenty-one million, nine thousand, nine hundred ninety-eight".