222123122232444 has 18 divisors (see below), whose sum is σ = 561477892309880. Its totient is φ = 74041040744136.

The previous prime is 222123122232443. The next prime is 222123122232463. The reversal of 222123122232444 is 444232221321222.

It is a happy number.

222123122232444 is a `hidden beast` number, since 2 + 2 + 2 + 12 + 312 + 2 + 2 + 324 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6170086728679 = 222123122232444 / (2 + 2 + 2 + 1 + 2 + 3 + 1 + 2 + 2 + 2 + 3 + 2 + 4 + 4 + 4).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 222123122232399 and 222123122232408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222123122232443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3085043364304 + ... + 3085043364375.

Almost surely, 2^{222123122232444} is an apocalyptic number.

It is an amenable number.

222123122232444 is an abundant number, since it is smaller than the sum of its proper divisors (339354770077436).

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

222123122232444 is a wasteful number, since it uses less digits than its factorization.

222123122232444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170086728689 (or 6170086728684 counting only the distinct ones).

The product of its digits is 147456, while the sum is 36.

Adding to 222123122232444 its reverse (444232221321222), we get a palindrome (666355343553666).

The spelling of 222123122232444 in words is "two hundred twenty-two trillion, one hundred twenty-three billion, one hundred twenty-two million, two hundred thirty-two thousand, four hundred forty-four".