221020110122222 has 16 divisors (see below), whose sum is σ = 366294197850912. Its totient is φ = 99487312995840.

The previous prime is 221020110122209. The next prime is 221020110122377. The reversal of 221020110122222 is 222221011020122.

It is a junction number, because it is equal to n+sod(n) for n = 221020110122194 and 221020110122203.

It is a congruent number.

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, 141317205179 + ... + 141317206742.

It is an arithmetic number, because the mean of its divisors is an integer number (22893387365682).

Almost surely, 2^{221020110122222} is an apocalyptic number.

221020110122222 is a deficient number, since it is larger than the sum of its proper divisors (145274087728690).

221020110122222 is a wasteful number, since it uses less digits than its factorization.

221020110122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282634411963.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221020110122222 its reverse (222221011020122), we get a palindrome (443241121142344).

The spelling of 221020110122222 in words is "two hundred twenty-one trillion, twenty billion, one hundred ten million, one hundred twenty-two thousand, two hundred twenty-two".