222009722 has 16 divisors (see below), whose sum is σ = 363642912. Its totient is φ = 100815120.

The previous prime is 222009721. The next prime is 222009727. The reversal of 222009722 is 227900222.

It is a junction number, because it is equal to n+sod(n) for n = 222009691 and 222009700.

It is not an unprimeable number, because it can be changed into a prime (222009721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21248 + ... + 29924.

It is an arithmetic number, because the mean of its divisors is an integer number (22727682).

Almost surely, 2^222009722 is an apocalyptic number.

222009722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222009722 is a deficient number, since it is larger than the sum of its proper divisors (141633190).

222009722 is a wasteful number, since it uses less digits than its factorization.

222009722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9853.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 222009722 is about 14899.9906711380. The cubic root of 222009722 is about 605.5137334389.

Adding to 222009722 its reverse (227900222), we get a palindrome (449909944).

The spelling of 222009722 in words is "two hundred twenty-two million, nine thousand, seven hundred twenty-two".