22220186722 has 8 divisors (see below), whose sum is σ = 33499469916. Its totient is φ = 11053696752.

The previous prime is 22220186717. The next prime is 22220186731. The reversal of 22220186722 is 22768102222.

It can be written as a sum of positive squares in 2 ways, for example, as 21549946401 + 670240321 = 146799^2 + 25889^2 .

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

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, 28197813 + ... + 28198600.

Almost surely, 2^22220186722 is an apocalyptic number.

22220186722 is a deficient number, since it is larger than the sum of its proper divisors (11279283194).

22220186722 is a wasteful number, since it uses less digits than its factorization.

22220186722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56396612.

The product of its (nonzero) digits is 21504, while the sum is 34.

Adding to 22220186722 its reverse (22768102222), we get a palindrome (44988288944).

The spelling of 22220186722 in words is "twenty-two billion, two hundred twenty million, one hundred eighty-six thousand, seven hundred twenty-two".