22221144112222 has 64 divisors (see below), whose sum is σ = 37599048115200. Its totient is φ = 9764249863680.

The previous prime is 22221144112207. The next prime is 22221144112283.

It is a happy number.

22221144112222 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×22221144112222² (a number of 27 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16742529 + ... + 18020947.

It is an arithmetic number, because the mean of its divisors is an integer number (587485126800).

Almost surely, 2^{22221144112222} is an apocalyptic number.

22221144112222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22221144112222 is a deficient number, since it is larger than the sum of its proper divisors (15377904002978).

22221144112222 is a wasteful number, since it uses less digits than its factorization.

22221144112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278721.

The product of its digits is 4096, while the sum is 28.

It can be divided in two parts, 2222114 and 4112222, that added together give a palindrome (6334336).

The spelling of 22221144112222 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred forty-four million, one hundred twelve thousand, two hundred twenty-two".