2200900821 has 8 divisors (see below), whose sum is σ = 3353753664. Its totient is φ = 1257657600.

The previous prime is 2200900811. The next prime is 2200900829. The reversal of 2200900821 is 1280090022.

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

It is not a de Polignac number, because 2200900821 - 2⁵ = 2200900789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2200900791 and 2200900800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200900829) 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, 52402380 + ... + 52402421.

It is an arithmetic number, because the mean of its divisors is an integer number (419219208).

Almost surely, 2^2200900821 is an apocalyptic number.

2200900821 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2200900821 is a deficient number, since it is larger than the sum of its proper divisors (1152852843).

2200900821 is a wasteful number, since it uses less digits than its factorization.

2200900821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104804811.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2200900821 is about 46913.7593995621. The cubic root of 2200900821 is about 1300.7689377930.

Adding to 2200900821 its reverse (1280090022), we get a palindrome (3480990843).

The spelling of 2200900821 in words is "two billion, two hundred million, nine hundred thousand, eight hundred twenty-one".