100020002012 has 24 divisors (see below), whose sum is σ = 201087344640. Its totient is φ = 42641285040.

The previous prime is 100020002009. The next prime is 100020002021. The reversal of 100020002012 is 210200020001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9345812 + ... + 9356507.

It is an arithmetic number, because the mean of its divisors is an integer number (8378639360).

Almost surely, 2^100020002012 is an apocalyptic number.

It is an amenable number.

100020002012 is an abundant number, since it is smaller than the sum of its proper divisors (101067342628).

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

100020002012 is a wasteful number, since it uses less digits than its factorization.

100020002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18702521 (or 18702519 counting only the distinct ones).

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

Adding to 100020002012 its reverse (210200020001), we get a palindrome (310220022013).

The spelling of 100020002012 in words is "one hundred billion, twenty million, two thousand, twelve".