22202122 has 4 divisors (see below), whose sum is σ = 33303186. Its totient is φ = 11101060.

The previous prime is 22202111. The next prime is 22202137. The reversal of 22202122 is 22120222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14356521 + 7845601 = 3789^2 + 2801^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5550529 + ... + 5550532.

Almost surely, 2^22202122 is an apocalyptic number.

22202122 is a deficient number, since it is larger than the sum of its proper divisors (11101064).

22202122 is a wasteful number, since it uses less digits than its factorization.

22202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101063.

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

The square root of 22202122 is about 4711.9127750840. The cubic root of 22202122 is about 281.0594302772.

Adding to 22202122 its reverse (22120222), we get a palindrome (44322344).

The spelling of 22202122 in words is "twenty-two million, two hundred two thousand, one hundred twenty-two".