22011111122222 has 8 divisors (see below), whose sum is σ = 33016686590376. Its totient is φ = 11005548925432.

The previous prime is 22011111122197. The next prime is 22011111122257. The reversal of 22011111122222 is 22222111111022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22011111122194 and 22011111122203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4851593 + ... + 8219499.

It is an arithmetic number, because the mean of its divisors is an integer number (4127085823797).

Almost surely, 2^{22011111122222} is an apocalyptic number.

22011111122222 is a deficient number, since it is larger than the sum of its proper divisors (11005575468154).

22011111122222 is a wasteful number, since it uses less digits than its factorization.

22011111122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6635682.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22011111122222 its reverse (22222111111022), we get a palindrome (44233222233244).

The spelling of 22011111122222 in words is "twenty-two trillion, eleven billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twenty-two".