20122202222 has 4 divisors (see below), whose sum is σ = 30183303336. Its totient is φ = 10061101110.

The previous prime is 20122202209. The next prime is 20122202227. The reversal of 20122202222 is 22220222102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20122202222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122202227) 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 as a sum of consecutive naturals, namely, 5030550554 + ... + 5030550557.

It is an arithmetic number, because the mean of its divisors is an integer number (7545825834).

Almost surely, 2^20122202222 is an apocalyptic number.

20122202222 is a deficient number, since it is larger than the sum of its proper divisors (10061101114).

20122202222 is a wasteful number, since it uses less digits than its factorization.

20122202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061101113.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20122202222 its reverse (22220222102), we get a palindrome (42342424324).

The spelling of 20122202222 in words is "twenty billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-two".