20110222220201 has 4 divisors (see below), whose sum is σ = 20116259516304. Its totient is φ = 20104184924100.

The previous prime is 20110222220147. The next prime is 20110222220213. The reversal of 20110222220201 is 10202222201102.

It is a happy number.

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-20110222220201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20110222220201.

It is not an unprimeable number, because it can be changed into a prime (20110222225201) 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, 3018643055 + ... + 3018649716.

It is an arithmetic number, because the mean of its divisors is an integer number (5029064879076).

Almost surely, 2^{20110222220201} is an apocalyptic number.

It is an amenable number.

20110222220201 is a deficient number, since it is larger than the sum of its proper divisors (6037296103).

20110222220201 is an equidigital number, since it uses as much as digits as its factorization.

20110222220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037296102.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20110222220201 its reverse (10202222201102), we get a palindrome (30312444421303).

The spelling of 20110222220201 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, two hundred twenty thousand, two hundred one".