28222225105 has 8 divisors (see below), whose sum is σ = 33868132992. Its totient is φ = 22576804848.

The previous prime is 28222225081. The next prime is 28222225121. The reversal of 28222225105 is 50152222282.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28222225105 - 2¹⁹ = 28221700817 is a prime.

It is a super-2 number, since 2×28222225105² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20562 + ... + 238468.

It is an arithmetic number, because the mean of its divisors is an integer number (4233516624).

Almost surely, 2^28222225105 is an apocalyptic number.

It is an amenable number.

28222225105 is a deficient number, since it is larger than the sum of its proper divisors (5645907887).

28222225105 is a wasteful number, since it uses less digits than its factorization.

28222225105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243815.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 28222225105 its reverse (50152222282), we get a palindrome (78374447387).

The spelling of 28222225105 in words is "twenty-eight billion, two hundred twenty-two million, two hundred twenty-five thousand, one hundred five".