22221022012202 has 8 divisors (see below), whose sum is σ = 35895497096676. Its totient is φ = 10255856313312.

The previous prime is 22221022012201. The next prime is 22221022012339. The reversal of 22221022012202 is 20221022012222.

It can be written as a sum of positive squares in 2 ways, for example, as 17830274753281 + 4390747258921 = 4222591^2 + 2095411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22221022012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427327346363 + ... + 427327346414.

Almost surely, 2^{22221022012202} is an apocalyptic number.

22221022012202 is a deficient number, since it is larger than the sum of its proper divisors (13674475084474).

22221022012202 is a wasteful number, since it uses less digits than its factorization.

22221022012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854654692792.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22221022012202 its sum of digits (20), we get a palindrome (22221022012222).

Adding to 22221022012202 its reverse (20221022012222), we get a palindrome (42442044024424).

The spelling of 22221022012202 in words is "twenty-two trillion, two hundred twenty-one billion, twenty-two million, twelve thousand, two hundred two".