22287128706 has 48 divisors (see below), whose sum is σ = 50887044000. Its totient is φ = 7030183104.

The previous prime is 22287128683. The next prime is 22287128719. The reversal of 22287128706 is 60782178222.

It is a super-2 number, since 2×22287128706² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274270 + ... + 346118.

It is an arithmetic number, because the mean of its divisors is an integer number (1060146750).

Almost surely, 2^22287128706 is an apocalyptic number.

22287128706 is an abundant number, since it is smaller than the sum of its proper divisors (28599915294).

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

22287128706 is a wasteful number, since it uses less digits than its factorization.

22287128706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72783 (or 72780 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 22287128706 in words is "twenty-two billion, two hundred eighty-seven million, one hundred twenty-eight thousand, seven hundred six".