22221228407 has 16 divisors (see below), whose sum is σ = 25730602560. Its totient is φ = 18797033472.

The previous prime is 22221228391. The next prime is 22221228409. The reversal of 22221228407 is 70482212222.

It is not a de Polignac number, because 22221228407 - 2⁴ = 22221228391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221228409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124019 + ... + 244587.

It is an arithmetic number, because the mean of its divisors is an integer number (1608162660).

Almost surely, 2^22221228407 is an apocalyptic number.

22221228407 is a deficient number, since it is larger than the sum of its proper divisors (3509374153).

22221228407 is a wasteful number, since it uses less digits than its factorization.

22221228407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120922.

The product of its (nonzero) digits is 14336, while the sum is 32.

The spelling of 22221228407 in words is "twenty-two billion, two hundred twenty-one million, two hundred twenty-eight thousand, four hundred seven".