605221122506 has 96 divisors (see below), whose sum is σ = 1245699305856. Its totient is φ = 214093152000.

The previous prime is 605221122487. The next prime is 605221122509.

605221122506 is nontrivially palindromic in base 10.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (605221122509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1396976 + ... + 1778196.

It is an arithmetic number, because the mean of its divisors is an integer number (12976034436).

Almost surely, 2^605221122506 is an apocalyptic number.

605221122506 is an abundant number, since it is smaller than the sum of its proper divisors (640478183350).

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

605221122506 is a wasteful number, since it uses less digits than its factorization.

605221122506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381328 (or 381315 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

It can be divided in two parts, 605221 and 122506, that added together give a palindrome (727727).

The spelling of 605221122506 in words is "six hundred five billion, two hundred twenty-one million, one hundred twenty-two thousand, five hundred six".