101112212001100 has 144 divisors (see below), whose sum is σ = 229590835246080. Its totient is φ = 38606111942400.

The previous prime is 101112212001071. The next prime is 101112212001173. The reversal of 101112212001100 is 1100212211101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158951274 + ... + 159586126.

It is an arithmetic number, because the mean of its divisors is an integer number (1594380800320).

Almost surely, 2^{101112212001100} is an apocalyptic number.

101112212001100 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 101112212001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114795417623040).

101112212001100 is an abundant number, since it is smaller than the sum of its proper divisors (128478623244980).

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

101112212001100 is a wasteful number, since it uses less digits than its factorization.

101112212001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635600 (or 635593 counting only the distinct ones).

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

Adding to 101112212001100 its reverse (1100212211101), we get a palindrome (102212424212201).

The spelling of 101112212001100 in words is "one hundred one trillion, one hundred twelve billion, two hundred twelve million, one thousand, one hundred".