221000221020202 has 16 divisors (see below), whose sum is σ = 357029168815872. Its totient is φ = 101991870071280.

The previous prime is 221000221020119. The next prime is 221000221020217. The reversal of 221000221020202 is 202020122000122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342669058 + ... + 343313389.

It is an arithmetic number, because the mean of its divisors is an integer number (22314323050992).

Almost surely, 2^{221000221020202} is an apocalyptic number.

221000221020202 is a deficient number, since it is larger than the sum of its proper divisors (136028947795670).

221000221020202 is a wasteful number, since it uses less digits than its factorization.

221000221020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685994853.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221000221020202 its reverse (202020122000122), we get a palindrome (423020343020324).

The spelling of 221000221020202 in words is "two hundred twenty-one trillion, two hundred twenty-one million, twenty thousand, two hundred two".