222001023005 has 4 divisors (see below), whose sum is σ = 266401227612. Its totient is φ = 177600818400.

The previous prime is 222001023001. The next prime is 222001023007. The reversal of 222001023005 is 500320100222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500320100222 = 2 ⋅250160050111.

It can be written as a sum of positive squares in 2 ways, for example, as 75852320569 + 146148702436 = 275413^2 + 382294^2 .

It is not a de Polignac number, because 222001023005 - 2² = 222001023001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001023001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22200102296 + ... + 22200102305.

It is an arithmetic number, because the mean of its divisors is an integer number (66600306903).

Almost surely, 2^222001023005 is an apocalyptic number.

It is an amenable number.

222001023005 is a deficient number, since it is larger than the sum of its proper divisors (44400204607).

222001023005 is an equidigital number, since it uses as much as digits as its factorization.

222001023005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44400204606.

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 222001023005 its reverse (500320100222), we get a palindrome (722321123227).

The spelling of 222001023005 in words is "two hundred twenty-two billion, one million, twenty-three thousand, five".