22122202 has 16 divisors (see below), whose sum is σ = 35347752. Its totient is φ = 10347520.

The previous prime is 22122173. The next prime is 22122203. The reversal of 22122202 is 20222122.

It can be written as a sum of positive squares in 4 ways, for example, as 22099401 + 22801 = 4701^2 + 151^2 .

It is not an unprimeable number, because it can be changed into a prime (22122203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4002 + ... + 7762.

Almost surely, 2^22122202 is an apocalyptic number.

22122202 is a deficient number, since it is larger than the sum of its proper divisors (13225550).

22122202 is a wasteful number, since it uses less digits than its factorization.

22122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22122202 is about 4703.4244971085. The cubic root of 22122202 is about 280.7217857367.

Adding to 22122202 its reverse (20222122), we get a palindrome (42344324).

It can be divided in two parts, 22122 and 202, that multiplied together give a palindrome (4468644).

The spelling of 22122202 in words is "twenty-two million, one hundred twenty-two thousand, two hundred two".