22222212122 has 8 divisors (see below), whose sum is σ = 36363619872. Its totient is φ = 10101005500.

The previous prime is 22222212121. The next prime is 22222212127. The reversal of 22222212122 is 22121222222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22222212094 and 22222212103.

It is not an unprimeable number, because it can be changed into a prime (22222212121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505050254 + ... + 505050297.

It is an arithmetic number, because the mean of its divisors is an integer number (4545452484).

Almost surely, 2^22222212122 is an apocalyptic number.

22222212122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22222212122 is a deficient number, since it is larger than the sum of its proper divisors (14141407750).

22222212122 is a wasteful number, since it uses less digits than its factorization.

22222212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010100564.

The product of its digits is 512, while the sum is 20.

Adding to 22222212122 its reverse (22121222222), we get a palindrome (44343434344).

The spelling of 22222212122 in words is "twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".