22021222111222 has 8 divisors (see below), whose sum is σ = 33065642620296. Its totient is φ = 10999341237792.

The previous prime is 22021222111219. The next prime is 22021222111223. The reversal of 22021222111222 is 22211122212022.

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 = 22021222111193 and 22021222111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021222111223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5634906468 + ... + 5634910375.

It is an arithmetic number, because the mean of its divisors is an integer number (4133205327537).

Almost surely, 2^{22021222111222} is an apocalyptic number.

22021222111222 is a deficient number, since it is larger than the sum of its proper divisors (11044420509074).

22021222111222 is a wasteful number, since it uses less digits than its factorization.

22021222111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269817822.

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

Adding to 22021222111222 its reverse (22211122212022), we get a palindrome (44232344323244).

The spelling of 22021222111222 in words is "twenty-two trillion, twenty-one billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".