605621222123 has 2 divisors, whose sum is σ = 605621222124. Its totient is φ = 605621222122.

The previous prime is 605621222119. The next prime is 605621222147. The reversal of 605621222123 is 321222126506.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 605621222123 - 2² = 605621222119 is a prime.

It is a super-2 number, since 2×605621222123² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 605621222123.

It is not a weakly prime, because it can be changed into another prime (605621222113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302810611061 + 302810611062.

It is an arithmetic number, because the mean of its divisors is an integer number (302810611062).

Almost surely, 2^605621222123 is an apocalyptic number.

605621222123 is a deficient number, since it is larger than the sum of its proper divisors (1).

605621222123 is an equidigital number, since it uses as much as digits as its factorization.

605621222123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 605621222123 its reverse (321222126506), we get a palindrome (926843348629).

The spelling of 605621222123 in words is "six hundred five billion, six hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-three".