221112100222 has 16 divisors (see below), whose sum is σ = 357190448832. Its totient is φ = 102049063200.

The previous prime is 221112100219. The next prime is 221112100241. The reversal of 221112100222 is 222001211122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221112100196 and 221112100205.

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, 1182972 + ... + 1357072.

It is an arithmetic number, because the mean of its divisors is an integer number (22324403052).

Almost surely, 2^221112100222 is an apocalyptic number.

221112100222 is a deficient number, since it is larger than the sum of its proper divisors (136078348610).

221112100222 is a wasteful number, since it uses less digits than its factorization.

221112100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222963.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221112100222 its reverse (222001211122), we get a palindrome (443113311344).

The spelling of 221112100222 in words is "two hundred twenty-one billion, one hundred twelve million, one hundred thousand, two hundred twenty-two".