22144220422 has 8 divisors (see below), whose sum is σ = 33923061216. Its totient is φ = 10836533352.

The previous prime is 22144220401. The next prime is 22144220447. The reversal of 22144220422 is 22402244122.

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

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, 117788313 + ... + 117788500.

It is an arithmetic number, because the mean of its divisors is an integer number (4240382652).

Almost surely, 2^22144220422 is an apocalyptic number.

22144220422 is a deficient number, since it is larger than the sum of its proper divisors (11778840794).

22144220422 is a wasteful number, since it uses less digits than its factorization.

22144220422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235576862.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 22144220422 its reverse (22402244122), we get a palindrome (44546464544).

The spelling of 22144220422 in words is "twenty-two billion, one hundred forty-four million, two hundred twenty thousand, four hundred twenty-two".