2200100021 has 8 divisors (see below), whose sum is σ = 2527036800. Its totient is φ = 1876322448.

The previous prime is 2200100017. The next prime is 2200100047. The reversal of 2200100021 is 1200010022.

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

It is not a de Polignac number, because 2200100021 - 2² = 2200100017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200099981 and 2200100008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200100321) 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, 788306 + ... + 791091.

It is an arithmetic number, because the mean of its divisors is an integer number (315879600).

Almost surely, 2^2200100021 is an apocalyptic number.

It is an amenable number.

2200100021 is a deficient number, since it is larger than the sum of its proper divisors (326936779).

2200100021 is a wasteful number, since it uses less digits than its factorization.

2200100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579603.

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

The square root of 2200100021 is about 46905.2238135583. The cubic root of 2200100021 is about 1300.6111566220.

Adding to 2200100021 its reverse (1200010022), we get a palindrome (3400110043).

The spelling of 2200100021 in words is "two billion, two hundred million, one hundred thousand, twenty-one".