100001001012 has 48 divisors (see below), whose sum is σ = 254618465472. Its totient is φ = 30294945280.

The previous prime is 100001001011. The next prime is 100001001019. The reversal of 100001001012 is 210100100001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001001011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382348 + ... + 588380.

It is an arithmetic number, because the mean of its divisors is an integer number (5304551364).

Almost surely, 2^100001001012 is an apocalyptic number.

100001001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100001001012 is an abundant number, since it is smaller than the sum of its proper divisors (154617464460).

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

100001001012 is a wasteful number, since it uses less digits than its factorization.

100001001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209728 (or 209726 counting only the distinct ones).

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

Adding to 100001001012 its reverse (210100100001), we get a palindrome (310101101013).

The spelling of 100001001012 in words is "one hundred billion, one million, one thousand, twelve".