22302222 has 16 divisors (see below), whose sum is σ = 44658432. Its totient is φ = 7425080.

The previous prime is 22302221. The next prime is 22302227. The reversal of 22302222 is 22220322.

It is a super-2 number, since 2×22302222² = 994778212274568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22302221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4843 + ... + 8249.

It is an arithmetic number, because the mean of its divisors is an integer number (2791152).

Almost surely, 2^22302222 is an apocalyptic number.

22302222 is an abundant number, since it is smaller than the sum of its proper divisors (22356210).

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

22302222 is a wasteful number, since it uses less digits than its factorization.

22302222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22302222 is about 4722.5228427187. The cubic root of 22302222 is about 281.4811898585.

Adding to 22302222 its reverse (22220322), we get a palindrome (44522544).

The spelling of 22302222 in words is "twenty-two million, three hundred two thousand, two hundred twenty-two".