100100020201 has 4 divisors (see below), whose sum is σ = 100101031504. Its totient is φ = 100099008900.

The previous prime is 100100020199. The next prime is 100100020219. The reversal of 100100020201 is 102020001001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 100100020201 - 2¹ = 100100020199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100100020291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338835 + ... + 561256.

It is an arithmetic number, because the mean of its divisors is an integer number (25025257876).

Almost surely, 2^100100020201 is an apocalyptic number.

It is an amenable number.

100100020201 is a deficient number, since it is larger than the sum of its proper divisors (1011303).

100100020201 is an equidigital number, since it uses as much as digits as its factorization.

100100020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011302.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 100100020201 its reverse (102020001001), we get a palindrome (202120021202).

It can be divided in two parts, 1001000 and 20201, that added together give a palindrome (1021201).

The spelling of 100100020201 in words is "one hundred billion, one hundred million, twenty thousand, two hundred one".