2200000000021 has 4 divisors (see below), whose sum is σ = 2201455990944. Its totient is φ = 2198544009100.

The previous prime is 2200000000001. The next prime is 2200000000027. The reversal of 2200000000021 is 1200000000022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2200000000021 - 2¹¹ = 2199999997973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2199999999932 and 2200000000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200000000027) 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 3 ways as a sum of consecutive naturals, for example, 727993195 + ... + 727996216.

It is an arithmetic number, because the mean of its divisors is an integer number (550363997736).

Almost surely, 2^{2200000000021} is an apocalyptic number.

It is an amenable number.

2200000000021 is a deficient number, since it is larger than the sum of its proper divisors (1455990923).

2200000000021 is a wasteful number, since it uses less digits than its factorization.

2200000000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455990922.

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 2200000000021 its reverse (1200000000022), we get a palindrome (3400000000043).

Subtracting from 2200000000021 its reverse (1200000000022), we obtain a palindrome (999999999999).

The spelling of 2200000000021 in words is "two trillion, two hundred billion, twenty-one", and thus it is an aban number.