100112011212 has 96 divisors (see below), whose sum is σ = 249680793600. Its totient is φ = 31111299072.

The previous prime is 100112011187. The next prime is 100112011301. The reversal of 100112011212 is 212110211001.

It is a super-2 number, since 2×100112011212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9404589 + ... + 9415227.

It is an arithmetic number, because the mean of its divisors is an integer number (2600841600).

Almost surely, 2^100112011212 is an apocalyptic number.

100112011212 is a gapful number since it is divisible by the number (12) 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 100112011212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124840396800).

100112011212 is an abundant number, since it is smaller than the sum of its proper divisors (149568782388).

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

100112011212 is a wasteful number, since it uses less digits than its factorization.

100112011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11095 (or 11093 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100112011212 its reverse (212110211001), we get a palindrome (312222222213).

The spelling of 100112011212 in words is "one hundred billion, one hundred twelve million, eleven thousand, two hundred twelve".