422544255221 has 8 divisors (see below), whose sum is σ = 460964102688. Its totient is φ = 384125530000.

The previous prime is 422544255181. The next prime is 422544255223. The reversal of 422544255221 is 122552445224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422544255221 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 (422544255223) 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 7 ways as a sum of consecutive naturals, for example, 637271 + ... + 1118571.

It is an arithmetic number, because the mean of its divisors is an integer number (57620512836).

Almost surely, 2^422544255221 is an apocalyptic number.

It is an amenable number.

422544255221 is a deficient number, since it is larger than the sum of its proper divisors (38419847467).

422544255221 is a wasteful number, since it uses less digits than its factorization.

422544255221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561123.

The product of its digits is 256000, while the sum is 38.

The spelling of 422544255221 in words is "four hundred twenty-two billion, five hundred forty-four million, two hundred fifty-five thousand, two hundred twenty-one".