112121101001000 has 512 divisors, whose sum is σ = 340058234880000. Its totient is φ = 33601620096000.

The previous prime is 112121101000907. The next prime is 112121101001003. The reversal of 112121101001000 is 100101121211.

It is a super-2 number, since 2×112121101001000² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112121101001003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4147857485 + ... + 4147884515.

It is an arithmetic number, because the mean of its divisors is an integer number (664176240000).

Almost surely, 2^{112121101001000} is an apocalyptic number.

112121101001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112121101001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170029117440000).

112121101001000 is an abundant number, since it is smaller than the sum of its proper divisors (227937133879000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112121101001000 is a wasteful number, since it uses less digits than its factorization.

112121101001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29490 (or 29476 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 112121101001000 its reverse (100101121211), we get a palindrome (112221202122211).

The spelling of 112121101001000 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred one million, one thousand".