22101220222 has 16 divisors (see below), whose sum is σ = 33219942912. Its totient is φ = 11027926360.

The previous prime is 22101220181. The next prime is 22101220231. The reversal of 22101220222 is 22202210122.

It is a junction number, because it is equal to n+sod(n) for n = 22101220196 and 22101220205.

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, 3011097 + ... + 3018427.

It is an arithmetic number, because the mean of its divisors is an integer number (2076246432).

Almost surely, 2^22101220222 is an apocalyptic number.

22101220222 is a deficient number, since it is larger than the sum of its proper divisors (11118722690).

22101220222 is a wasteful number, since it uses less digits than its factorization.

22101220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10223.

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

Adding to 22101220222 its reverse (22202210122), we get a palindrome (44303430344).

The spelling of 22101220222 in words is "twenty-two billion, one hundred one million, two hundred twenty thousand, two hundred twenty-two".