220201010211001 has 4 divisors (see below), whose sum is σ = 224355746252772. Its totient is φ = 216046274169232.

The previous prime is 220201010210989. The next prime is 220201010211011. The reversal of 220201010211001 is 100112010102022.

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 63255362648976 + 156945647562025 = 7953324^2 + 12527795^2 .

It is a cyclic number.

It is not a de Polignac number, because 220201010211001 - 2⁷ = 220201010210873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220201010211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2077368020806 + ... + 2077368020911.

It is an arithmetic number, because the mean of its divisors is an integer number (56088936563193).

Almost surely, 2^{220201010211001} is an apocalyptic number.

It is an amenable number.

220201010211001 is a deficient number, since it is larger than the sum of its proper divisors (4154736041771).

220201010211001 is an equidigital number, since it uses as much as digits as its factorization.

220201010211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154736041770.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220201010211001 its reverse (100112010102022), we get a palindrome (320313020313023).

It can be divided in two parts, 22020101021 and 1001, that added together give a palindrome (22020102022).

The spelling of 220201010211001 in words is "two hundred twenty trillion, two hundred one billion, ten million, two hundred eleven thousand, one".