220110201221201 has 4 divisors (see below), whose sum is σ = 220607063978352. Its totient is φ = 219613338464052.

The previous prime is 220110201221149. The next prime is 220110201221279. The reversal of 220110201221201 is 102122102011022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220110201221201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220110201221201.

It is not an unprimeable number, because it can be changed into a prime (220110201223201) 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, 248431377911 + ... + 248431378796.

It is an arithmetic number, because the mean of its divisors is an integer number (55151765994588).

Almost surely, 2^{220110201221201} is an apocalyptic number.

It is an amenable number.

220110201221201 is a deficient number, since it is larger than the sum of its proper divisors (496862757151).

220110201221201 is an equidigital number, since it uses as much as digits as its factorization.

220110201221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496862757150.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220110201221201 its reverse (102122102011022), we get a palindrome (322232303232223).

The spelling of 220110201221201 in words is "two hundred twenty trillion, one hundred ten billion, two hundred one million, two hundred twenty-one thousand, two hundred one".