22220222122 has 32 divisors (see below), whose sum is σ = 40497967872. Its totient is φ = 8937037824.

The previous prime is 22220222041. The next prime is 22220222131. The reversal of 22220222122 is 22122202222.

It is a self number, because there is not a number n which added to its sum of digits gives 22220222122.

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 15 ways as a sum of consecutive naturals, for example, 633943 + ... + 668074.

It is an arithmetic number, because the mean of its divisors is an integer number (1265561496).

Almost surely, 2^22220222122 is an apocalyptic number.

22220222122 is a deficient number, since it is larger than the sum of its proper divisors (18277745750).

22220222122 is a wasteful number, since it uses less digits than its factorization.

22220222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302102.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22220222122 its reverse (22122202222), we get a palindrome (44342424344).

The spelling of 22220222122 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-two".