220522500001 has 4 divisors (see below), whose sum is σ = 225901097604. Its totient is φ = 215143902400.

The previous prime is 220522499993. The next prime is 220522500007. The reversal of 220522500001 is 100005225022.

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 88899385600 + 131623114401 = 298160^2 + 362799^2 .

It is a cyclic number.

It is not a de Polignac number, because 220522500001 - 2³ = 220522499993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220522500007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2689298740 + ... + 2689298821.

It is an arithmetic number, because the mean of its divisors is an integer number (56475274401).

Almost surely, 2^220522500001 is an apocalyptic number.

It is an amenable number.

220522500001 is a deficient number, since it is larger than the sum of its proper divisors (5378597603).

220522500001 is an equidigital number, since it uses as much as digits as its factorization.

220522500001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378597602.

The product of its (nonzero) digits is 400, while the sum is 19.

Adding to 220522500001 its reverse (100005225022), we get a palindrome (320527725023).

The spelling of 220522500001 in words is "two hundred twenty billion, five hundred twenty-two million, five hundred thousand, one".