112121011021100 has 72 divisors (see below), whose sum is σ = 245487689344800. Its totient is φ = 44446714923520.

The previous prime is 112121011021073. The next prime is 112121011021133. The reversal of 112121011021100 is 1120110121211.

It is a super-2 number, since 2×112121011021100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1374902 + ... + 15037698.

It is an arithmetic number, because the mean of its divisors is an integer number (3409551240900).

Almost surely, 2^{112121011021100} is an apocalyptic number.

112121011021100 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 112121011021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122743844672400).

112121011021100 is an abundant number, since it is smaller than the sum of its proper divisors (133366678323700).

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

112121011021100 is a wasteful number, since it uses less digits than its factorization.

112121011021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13663547 (or 13663540 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 112121011021100 its reverse (1120110121211), we get a palindrome (113241121142311).

The spelling of 112121011021100 in words is "one hundred twelve trillion, one hundred twenty-one billion, eleven million, twenty-one thousand, one hundred".