220201202010121 has 2 divisors, whose sum is σ = 220201202010122. Its totient is φ = 220201202010120.

The previous prime is 220201202010079. The next prime is 220201202010149. The reversal of 220201202010121 is 121010202102022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200786066010000 + 19415136000121 = 14169900^2 + 4406261^2 .

It is a cyclic number.

It is not a de Polignac number, because 220201202010121 - 2⁹ = 220201202009609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220201202010095 and 220201202010104.

It is not a weakly prime, because it can be changed into another prime (220201202014121) 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 as a sum of consecutive naturals, namely, 110100601005060 + 110100601005061.

It is an arithmetic number, because the mean of its divisors is an integer number (110100601005061).

Almost surely, 2^{220201202010121} is an apocalyptic number.

It is an amenable number.

220201202010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

220201202010121 is an equidigital number, since it uses as much as digits as its factorization.

220201202010121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220201202010121 its reverse (121010202102022), we get a palindrome (341211404112143).

The spelling of 220201202010121 in words is "two hundred twenty trillion, two hundred one billion, two hundred two million, ten thousand, one hundred twenty-one".