221122110022222 has 16 divisors (see below), whose sum is σ = 337507256373120. Its totient is φ = 108621939484408.

The previous prime is 221122110022207. The next prime is 221122110022249. The reversal of 221122110022222 is 222220011221122.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221122110022193 and 221122110022202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561865738 + ... + 562259149.

It is an arithmetic number, because the mean of its divisors is an integer number (21094203523320).

Almost surely, 2^{221122110022222} is an apocalyptic number.

221122110022222 is a deficient number, since it is larger than the sum of its proper divisors (116385146350898).

221122110022222 is a wasteful number, since it uses less digits than its factorization.

221122110022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124126615.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221122110022222 its reverse (222220011221122), we get a palindrome (443342121243344).

The spelling of 221122110022222 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred ten million, twenty-two thousand, two hundred twenty-two".