220622050405 has 4 divisors (see below), whose sum is σ = 264746460492. Its totient is φ = 176497640320.

The previous prime is 220622050399. The next prime is 220622050409. The reversal of 220622050405 is 504050226022.

220622050405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89416548676 + 131205501729 = 299026^2 + 362223^2 .

It is a de Polignac number, because none of the positive numbers 2^k-220622050405 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 (220622050409) 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 3 ways as a sum of consecutive naturals, for example, 22062205036 + ... + 22062205045.

It is an arithmetic number, because the mean of its divisors is an integer number (66186615123).

Almost surely, 2^220622050405 is an apocalyptic number.

It is an amenable number.

220622050405 is a deficient number, since it is larger than the sum of its proper divisors (44124410087).

220622050405 is an equidigital number, since it uses as much as digits as its factorization.

220622050405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44124410086.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 220622050405 its reverse (504050226022), we get a palindrome (724672276427).

The spelling of 220622050405 in words is "two hundred twenty billion, six hundred twenty-two million, fifty thousand, four hundred five".