20000122220201 has 4 divisors (see below), whose sum is σ = 20000960156100. Its totient is φ = 19999284284304.

The previous prime is 20000122220159. The next prime is 20000122220231. The reversal of 20000122220201 is 10202222100002.

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 11951263843600 + 8048858376601 = 3457060^2 + 2837051^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000122220201 - 2⁶ = 20000122220137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000122220231) 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, 418932146 + ... + 418979883.

It is an arithmetic number, because the mean of its divisors is an integer number (5000240039025).

Almost surely, 2^{20000122220201} is an apocalyptic number.

It is an amenable number.

20000122220201 is a deficient number, since it is larger than the sum of its proper divisors (837935899).

20000122220201 is an equidigital number, since it uses as much as digits as its factorization.

20000122220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837935898.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20000122220201 its reverse (10202222100002), we get a palindrome (30202344320203).

The spelling of 20000122220201 in words is "twenty trillion, one hundred twenty-two million, two hundred twenty thousand, two hundred one".