255022423221 has 16 divisors (see below), whose sum is σ = 361260454464. Its totient is φ = 159467937024.

The previous prime is 255022423207. The next prime is 255022423261. The reversal of 255022423221 is 122324220552.

It is a happy number.

255022423221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255022423221 - 2⁷ = 255022423093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255022423261) 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 15 ways as a sum of consecutive naturals, for example, 8518231 + ... + 8548116.

It is an arithmetic number, because the mean of its divisors is an integer number (22578778404).

Almost surely, 2^255022423221 is an apocalyptic number.

It is an amenable number.

255022423221 is a deficient number, since it is larger than the sum of its proper divisors (106238031243).

255022423221 is a wasteful number, since it uses less digits than its factorization.

255022423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17066660.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 255022423221 its reverse (122324220552), we get a palindrome (377346643773).

The spelling of 255022423221 in words is "two hundred fifty-five billion, twenty-two million, four hundred twenty-three thousand, two hundred twenty-one".