100211601 has 16 divisors (see below), whose sum is σ = 154856448. Its totient is φ = 56456400.

The previous prime is 100211591. The next prime is 100211641. The reversal of 100211601 is 106112001.

It is a happy number.

It is not a de Polignac number, because 100211601 - 2⁵ = 100211569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100211641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32115 + ... + 35096.

It is an arithmetic number, because the mean of its divisors is an integer number (9678528).

Almost surely, 2^100211601 is an apocalyptic number.

It is an amenable number.

100211601 is a deficient number, since it is larger than the sum of its proper divisors (54644847).

100211601 is an equidigital number, since it uses as much as digits as its factorization.

100211601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67292.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 100211601 is about 10010.5744590408. The cubic root of 100211601 is about 464.4860409930.

Adding to 100211601 its reverse (106112001), we get a palindrome (206323602).

The spelling of 100211601 in words is "one hundred million, two hundred eleven thousand, six hundred one".