20221467485 has 8 divisors (see below), whose sum is σ = 24267220056. Its totient is φ = 16176201280.

The previous prime is 20221467433. The next prime is 20221467491. The reversal of 20221467485 is 58476412202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5923765156 + 14297702329 = 76966^2 + 119573^2 .

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

It is not a de Polignac number, because 20221467485 - 2¹⁸ = 20221205341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 22826 + ... + 202395.

It is an arithmetic number, because the mean of its divisors is an integer number (3033402507).

Almost surely, 2^20221467485 is an apocalyptic number.

It is an amenable number.

20221467485 is a deficient number, since it is larger than the sum of its proper divisors (4045752571).

20221467485 is a wasteful number, since it uses less digits than its factorization.

20221467485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243183.

The product of its (nonzero) digits is 215040, while the sum is 41.

Adding to 20221467485 its reverse (58476412202), we get a palindrome (78697879687).

The spelling of 20221467485 in words is "twenty billion, two hundred twenty-one million, four hundred sixty-seven thousand, four hundred eighty-five".