100001002020002 has 4 divisors (see below), whose sum is σ = 150001503030006. Its totient is φ = 50000501010000.

The previous prime is 100001002020001. The next prime is 100001002020113. The reversal of 100001002020002 is 200020200100001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65185939635961 + 34815062384041 = 8073781^2 + 5900429^2 .

It is not an unprimeable number, because it can be changed into a prime (100001002020001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000250504999 + ... + 25000250505002.

Almost surely, 2^{100001002020002} is an apocalyptic number.

100001002020002 is a deficient number, since it is larger than the sum of its proper divisors (50000501010004).

100001002020002 is an equidigital number, since it uses as much as digits as its factorization.

100001002020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50000501010003.

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

Adding to 100001002020002 its reverse (200020200100001), we get a palindrome (300021202120003).

The spelling of 100001002020002 in words is "one hundred trillion, one billion, two million, twenty thousand, two".