100120020201 has 24 divisors (see below), whose sum is σ = 158064251904. Its totient is φ = 60793937280.

The previous prime is 100120020163. The next prime is 100120020277. The reversal of 100120020201 is 102020021001.

It is not a de Polignac number, because 100120020201 - 2⁹ = 100120019689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100120020001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10549761 + ... + 10559246.

It is an arithmetic number, because the mean of its divisors is an integer number (6586010496).

Almost surely, 2^100120020201 is an apocalyptic number.

It is an amenable number.

100120020201 is a deficient number, since it is larger than the sum of its proper divisors (57944231703).

100120020201 is a wasteful number, since it uses less digits than its factorization.

100120020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21109061 (or 21109058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100120020201 its reverse (102020021001), we get a palindrome (202140041202).

The spelling of 100120020201 in words is "one hundred billion, one hundred twenty million, twenty thousand, two hundred one".