100220001 has 8 divisors (see below), whose sum is σ = 152716224. Its totient is φ = 57268560.

The previous prime is 100219967. The next prime is 100220009. The reversal of 100220001 is 100022001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100220001 - 2¹⁵ = 100187233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100220009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2386170 + ... + 2386211.

It is an arithmetic number, because the mean of its divisors is an integer number (19089528).

Almost surely, 2^100220001 is an apocalyptic number.

It is an amenable number.

100220001 is a deficient number, since it is larger than the sum of its proper divisors (52496223).

100220001 is an equidigital number, since it uses as much as digits as its factorization.

100220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772391.

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

The square root of 100220001 is about 10010.9940065910. The cubic root of 100220001 is about 464.4990187776.

Adding to 100220001 its reverse (100022001), we get a palindrome (200242002).

It can be divided in two parts, 10022000 and 1, that added together give a palindrome (10022001).

The spelling of 100220001 in words is "one hundred million, two hundred twenty thousand, one".