221143422202 has 8 divisors (see below), whose sum is σ = 331750326996. Its totient is φ = 110559979872.

The previous prime is 221143422191. The next prime is 221143422209. The reversal of 221143422202 is 202224341122.

It can be written as a sum of positive squares in 2 ways, for example, as 218817192841 + 2326229361 = 467779^2 + 48231^2 .

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 (221143422209) 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, 5842033 + ... + 5879764.

Almost surely, 2^221143422202 is an apocalyptic number.

221143422202 is a deficient number, since it is larger than the sum of its proper divisors (110606904794).

221143422202 is a wasteful number, since it uses less digits than its factorization.

221143422202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11731232.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 221143422202 its reverse (202224341122), we get a palindrome (423367763324).

The spelling of 221143422202 in words is "two hundred twenty-one billion, one hundred forty-three million, four hundred twenty-two thousand, two hundred two".