2102224421 has 16 divisors (see below), whose sum is σ = 2369342976. Its totient is φ = 1847880000.

The previous prime is 2102224381. The next prime is 2102224433. The reversal of 2102224421 is 1244222012.

It is a cyclic number.

It is not a de Polignac number, because 2102224421 - 2¹⁰ = 2102223397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102224393 and 2102224402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102224441) 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 15 ways as a sum of consecutive naturals, for example, 591911 + ... + 595451.

It is an arithmetic number, because the mean of its divisors is an integer number (148083936).

Almost surely, 2^2102224421 is an apocalyptic number.

It is an amenable number.

2102224421 is a deficient number, since it is larger than the sum of its proper divisors (267118555).

2102224421 is a wasteful number, since it uses less digits than its factorization.

2102224421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2102224421 is about 45850.0209487411. The cubic root of 2102224421 is about 1281.0311557820.

Adding to 2102224421 its reverse (1244222012), we get a palindrome (3346446433).

The spelling of 2102224421 in words is "two billion, one hundred two million, two hundred twenty-four thousand, four hundred twenty-one".