100020101112 has 144 divisors (see below), whose sum is σ = 293625132840. Its totient is φ = 30731342976.

The previous prime is 100020101089. The next prime is 100020101179. The reversal of 100020101112 is 211101020001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100020101094 and 100020101103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 909703 + ... + 1013705.

Almost surely, 2^100020101112 is an apocalyptic number.

100020101112 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 100020101112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146812566420).

100020101112 is an abundant number, since it is smaller than the sum of its proper divisors (193605031728).

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

100020101112 is a wasteful number, since it uses less digits than its factorization.

100020101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104090 (or 104064 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100020101112 its reverse (211101020001), we get a palindrome (311121121113).

The spelling of 100020101112 in words is "one hundred billion, twenty million, one hundred one thousand, one hundred twelve".