22434214021 has 4 divisors (see below), whose sum is σ = 22857501132. Its totient is φ = 22010926912.

The previous prime is 22434213973. The next prime is 22434214027. The reversal of 22434214021 is 12041243422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7425268900 + 15008945121 = 86170^2 + 122511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22434214021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22434214027) 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, 211643476 + ... + 211643581.

It is an arithmetic number, because the mean of its divisors is an integer number (5714375283).

Almost surely, 2^22434214021 is an apocalyptic number.

It is an amenable number.

22434214021 is a deficient number, since it is larger than the sum of its proper divisors (423287111).

22434214021 is an equidigital number, since it uses as much as digits as its factorization.

22434214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423287110.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 22434214021 its reverse (12041243422), we get a palindrome (34475457443).

The spelling of 22434214021 in words is "twenty-two billion, four hundred thirty-four million, two hundred fourteen thousand, twenty-one".