22111101121222 has 16 divisors (see below), whose sum is σ = 33872472691200. Its totient is φ = 10820278940488.

The previous prime is 22111101121199. The next prime is 22111101121223. The reversal of 22111101121222 is 22212110111122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22111101121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111101121223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32288463 + ... + 32966149.

It is an arithmetic number, because the mean of its divisors is an integer number (2117029543200).

Almost surely, 2^{22111101121222} is an apocalyptic number.

22111101121222 is a deficient number, since it is larger than the sum of its proper divisors (11761371569978).

22111101121222 is a wasteful number, since it uses less digits than its factorization.

22111101121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024835.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22111101121222 its reverse (22212110111122), we get a palindrome (44323211232344).

The spelling of 22111101121222 in words is "twenty-two trillion, one hundred eleven billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty-two".