221122221202 has 8 divisors (see below), whose sum is σ = 331868738700. Its totient is φ = 110499308304.

The previous prime is 221122221169. The next prime is 221122221227. The reversal of 221122221202 is 202122221122.

It can be written as a sum of positive squares in 2 ways, for example, as 184435032681 + 36687188521 = 429459^2 + 191539^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 221122221202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30896677 + ... + 30903832.

Almost surely, 2^221122221202 is an apocalyptic number.

221122221202 is a deficient number, since it is larger than the sum of its proper divisors (110746517498).

221122221202 is a wasteful number, since it uses less digits than its factorization.

221122221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61802300.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221122221202 its reverse (202122221122), we get a palindrome (423244442324).

The spelling of 221122221202 in words is "two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred two".