221000220220222 has 8 divisors (see below), whose sum is σ = 331772721731136. Its totient is φ = 110409312976512.

The previous prime is 221000220220139. The next prime is 221000220220223. The reversal of 221000220220222 is 222022022000122.

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 221000220220222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000220220223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45398563758 + ... + 45398568625.

It is an arithmetic number, because the mean of its divisors is an integer number (41471590216392).

Almost surely, 2^{221000220220222} is an apocalyptic number.

221000220220222 is a deficient number, since it is larger than the sum of its proper divisors (110772501510914).

221000220220222 is a wasteful number, since it uses less digits than its factorization.

221000220220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90797133602.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 221000220220222 its reverse (222022022000122), we get a palindrome (443022242220344).

The spelling of 221000220220222 in words is "two hundred twenty-one trillion, two hundred twenty million, two hundred twenty thousand, two hundred twenty-two".