22120222111222 has 8 divisors (see below), whose sum is σ = 33181965877176. Its totient is φ = 11059566818832.

The previous prime is 22120222111187. The next prime is 22120222111231. The reversal of 22120222111222 is 22211122202122.

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 = 22120222111193 and 22120222111202.

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, 272067583 + ... + 272148874.

It is an arithmetic number, because the mean of its divisors is an integer number (4147745734647).

Almost surely, 2^{22120222111222} is an apocalyptic number.

22120222111222 is a deficient number, since it is larger than the sum of its proper divisors (11061743765954).

22120222111222 is a wasteful number, since it uses less digits than its factorization.

22120222111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544236782.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22120222111222 its reverse (22211122202122), we get a palindrome (44331344313344).

The spelling of 22120222111222 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".