22122100222 has 16 divisors (see below), whose sum is σ = 33529023360. Its totient is φ = 10946343448.

The previous prime is 22122100213. The next prime is 22122100243. The reversal of 22122100222 is 22200122122.

It is a junction number, because it is equal to n+sod(n) for n = 22122100196 and 22122100205.

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, 70072 + ... + 221707.

It is an arithmetic number, because the mean of its divisors is an integer number (2095563960).

Almost surely, 2^22122100222 is an apocalyptic number.

22122100222 is a deficient number, since it is larger than the sum of its proper divisors (11406923138).

22122100222 is a wasteful number, since it uses less digits than its factorization.

22122100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292175.

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

Adding to 22122100222 its reverse (22200122122), we get a palindrome (44322222344).

The spelling of 22122100222 in words is "twenty-two billion, one hundred twenty-two million, one hundred thousand, two hundred twenty-two".