22421245422 has 32 divisors (see below), whose sum is σ = 46126590624. Its totient is φ = 7260364800.

The previous prime is 22421245417. The next prime is 22421245423. The reversal of 22421245422 is 22454212422.

It is a self number, because there is not a number n which added to its sum of digits gives 22421245422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421245423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63522 + ... + 221082.

It is an arithmetic number, because the mean of its divisors is an integer number (1441455957).

Almost surely, 2^22421245422 is an apocalyptic number.

22421245422 is an abundant number, since it is smaller than the sum of its proper divisors (23705345202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22421245422 is a wasteful number, since it uses less digits than its factorization.

22421245422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158244.

The product of its digits is 20480, while the sum is 30.

Adding to 22421245422 its reverse (22454212422), we get a palindrome (44875457844).

The spelling of 22421245422 in words is "twenty-two billion, four hundred twenty-one million, two hundred forty-five thousand, four hundred twenty-two".