22443010421 has 16 divisors (see below), whose sum is σ = 24237980928. Its totient is φ = 20657937600.

The previous prime is 22443010409. The next prime is 22443010441. The reversal of 22443010421 is 12401034422.

It is a cyclic number.

It is not a de Polignac number, because 22443010421 - 2¹⁴ = 22442994037 is a prime.

It is a super-2 number, since 2×22443010421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22443010441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9170420 + ... + 9172866.

It is an arithmetic number, because the mean of its divisors is an integer number (1514873808).

Almost surely, 2^22443010421 is an apocalyptic number.

It is an amenable number.

22443010421 is a deficient number, since it is larger than the sum of its proper divisors (1794970507).

22443010421 is a wasteful number, since it uses less digits than its factorization.

22443010421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22443010421 its reverse (12401034422), we get a palindrome (34844044843).

The spelling of 22443010421 in words is "twenty-two billion, four hundred forty-three million, ten thousand, four hundred twenty-one".