10001012100 has 72 divisors (see below), whose sum is σ = 29109678528. Its totient is φ = 2650953600.

The previous prime is 10001012041. The next prime is 10001012101. The reversal of 10001012100 is 121010001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (10001012101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49711 + ... + 149910.

Almost surely, 2^10001012100 is an apocalyptic number.

10001012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001012100 is an abundant number, since it is smaller than the sum of its proper divisors (19108666428).

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

10001012100 is a wasteful number, since it uses less digits than its factorization.

10001012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199805 (or 199798 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 10001012100 its reverse (121010001), we get a palindrome (10122022101).

The spelling of 10001012100 in words is "ten billion, one million, twelve thousand, one hundred".