220201212221201 has 8 divisors (see below), whose sum is σ = 220401669289704. Its totient is φ = 220000783622400.

The previous prime is 220201212221147. The next prime is 220201212221279. The reversal of 220201212221201 is 102122212102022.

It can be written as a sum of positive squares in 4 ways, for example, as 21286181553025 + 198915030668176 = 4613695^2 + 14103724^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 220201212221201 - 2¹⁰ = 220201212220177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220201212221701) 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 7 ways as a sum of consecutive naturals, for example, 8374115 + ... + 22594871.

It is an arithmetic number, because the mean of its divisors is an integer number (27550208661213).

Almost surely, 2^{220201212221201} is an apocalyptic number.

It is an amenable number.

220201212221201 is a deficient number, since it is larger than the sum of its proper divisors (200457068503).

220201212221201 is a wasteful number, since it uses less digits than its factorization.

220201212221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14234851.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220201212221201 its reverse (102122212102022), we get a palindrome (322323424323223).

The spelling of 220201212221201 in words is "two hundred twenty trillion, two hundred one billion, two hundred twelve million, two hundred twenty-one thousand, two hundred one".