22111121220222 has 16 divisors (see below), whose sum is σ = 44223311391120. Its totient is φ = 7370195581632.

The previous prime is 22111121220193. The next prime is 22111121220241. The reversal of 22111121220222 is 22202212111122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44270583 + ... + 44767250.

It is an arithmetic number, because the mean of its divisors is an integer number (2763956961945).

Almost surely, 2^{22111121220222} is an apocalyptic number.

22111121220222 is an abundant number, since it is smaller than the sum of its proper divisors (22112190170898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22111121220222 is a wasteful number, since it uses less digits than its factorization.

22111121220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89079227.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22111121220222 its reverse (22202212111122), we get a palindrome (44313333331344).

The spelling of 22111121220222 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".