2100221201 has 8 divisors (see below), whose sum is σ = 2334737664. Its totient is φ = 1876127760.

The previous prime is 2100221153. The next prime is 2100221231. The reversal of 2100221201 is 1021220012.

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 2100221201 - 2²² = 2096026897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100221231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2605331 + ... + 2606136.

It is an arithmetic number, because the mean of its divisors is an integer number (291842208).

Almost surely, 2^2100221201 is an apocalyptic number.

It is an amenable number.

2100221201 is a deficient number, since it is larger than the sum of its proper divisors (234516463).

2100221201 is a wasteful number, since it uses less digits than its factorization.

2100221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211511.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2100221201 is about 45828.1703867828. The cubic root of 2100221201 is about 1280.6241261695.

Adding to 2100221201 its reverse (1021220012), we get a palindrome (3121441213).

The spelling of 2100221201 in words is "two billion, one hundred million, two hundred twenty-one thousand, two hundred one".