100001200002 has 32 divisors (see below), whose sum is σ = 218209745664. Its totient is φ = 30299878800.

The previous prime is 100001199979. The next prime is 100001200031. The reversal of 100001200002 is 200002100001.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516673 + ... + 683339.

It is an arithmetic number, because the mean of its divisors is an integer number (6819054552).

Almost surely, 2^100001200002 is an apocalyptic number.

100001200002 is an abundant number, since it is smaller than the sum of its proper divisors (118208545662).

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

100001200002 is a wasteful number, since it uses less digits than its factorization.

100001200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175774.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 100001200002 its reverse (200002100001), we get a palindrome (300003300003).

It can be divided in two parts, 100001 and 200002, that multiplied together give a palindrome (20000400002).

The spelling of 100001200002 in words is "one hundred billion, one million, two hundred thousand, two".