22222202122 has 4 divisors (see below), whose sum is σ = 33333303186. Its totient is φ = 11111101060.

The previous prime is 22222202113. The next prime is 22222202129. The reversal of 22222202122 is 22120222222.

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., 16558285041 + 5663917081 = 128679^2 + 75259^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22222202122.

It is not an unprimeable number, because it can be changed into a prime (22222202129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555550529 + ... + 5555550532.

Almost surely, 2^22222202122 is an apocalyptic number.

22222202122 is a deficient number, since it is larger than the sum of its proper divisors (11111101064).

22222202122 is a wasteful number, since it uses less digits than its factorization.

22222202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111101063.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22222202122 its reverse (22120222222), we get a palindrome (44342424344).

The spelling of 22222202122 in words is "twenty-two billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-two".