20444442222 has 8 divisors (see below), whose sum is σ = 40888884456. Its totient is φ = 6814814072.

The previous prime is 20444442217. The next prime is 20444442257. The reversal of 20444442222 is 22224444402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

20444442222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20444442222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703703513 + ... + 1703703524.

It is an arithmetic number, because the mean of its divisors is an integer number (5111110557).

Almost surely, 2^20444442222 is an apocalyptic number.

20444442222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20444442222 is a wasteful number, since it uses less digits than its factorization.

20444442222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407407042.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 20444442222 its reverse (22224444402), we get a palindrome (42668886624).

The spelling of 20444442222 in words is "twenty billion, four hundred forty-four million, four hundred forty-two thousand, two hundred twenty-two".