22222222446 has 16 divisors (see below), whose sum is σ = 44467995600. Its totient is φ = 7403482368.

The previous prime is 22222222441. The next prime is 22222222447. The reversal of 22222222446 is 64422222222.

It is a happy number.

22222222446 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222222441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969001 + ... + 991668.

It is an arithmetic number, because the mean of its divisors is an integer number (2779249725).

Almost surely, 2^22222222446 is an apocalyptic number.

22222222446 is an abundant number, since it is smaller than the sum of its proper divisors (22245773154).

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

22222222446 is a wasteful number, since it uses less digits than its factorization.

22222222446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962563.

The product of its digits is 24576, while the sum is 30.

Adding to 22222222446 its reverse (64422222222), we get a palindrome (86644444668).

The spelling of 22222222446 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, four hundred forty-six".