202220022122 has 4 divisors (see below), whose sum is σ = 303330033186. Its totient is φ = 101110011060.

The previous prime is 202220022113. The next prime is 202220022127. The reversal of 202220022122 is 221220022202.

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., 201000685561 + 1219336561 = 448331^2 + 34919^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202220022122.

It is not an unprimeable number, because it can be changed into a prime (202220022127) 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, 50555005529 + ... + 50555005532.

Almost surely, 2^202220022122 is an apocalyptic number.

202220022122 is a deficient number, since it is larger than the sum of its proper divisors (101110011064).

202220022122 is a wasteful number, since it uses less digits than its factorization.

202220022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101110011063.

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

Adding to 202220022122 its reverse (221220022202), we get a palindrome (423440044324).

The spelling of 202220022122 in words is "two hundred two billion, two hundred twenty million, twenty-two thousand, one hundred twenty-two".