20222122 has 4 divisors (see below), whose sum is σ = 30333186. Its totient is φ = 10111060.

The previous prime is 20222117. The next prime is 20222123. The reversal of 20222122 is 22122202.

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., 17969121 + 2253001 = 4239^2 + 1501^2 .

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 not an unprimeable number, because it can be changed into a prime (20222123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055529 + ... + 5055532.

Almost surely, 2^20222122 is an apocalyptic number.

20222122 is a deficient number, since it is larger than the sum of its proper divisors (10111064).

20222122 is a wasteful number, since it uses less digits than its factorization.

20222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111063.

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

The square root of 20222122 is about 4496.9013776155. The cubic root of 20222122 is about 272.4429507709.

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

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

The spelling of 20222122 in words is "twenty million, two hundred twenty-two thousand, one hundred twenty-two".