201102002220221 has 4 divisors (see below), whose sum is σ = 201102074410272. Its totient is φ = 201101930030172.

The previous prime is 201102002220211. The next prime is 201102002220253. The reversal of 201102002220221 is 122022200201102.

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 not a de Polignac number, because 201102002220221 - 2⁶ = 201102002220157 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 201102002220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102002220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31741391 + ... + 37546236.

It is an arithmetic number, because the mean of its divisors is an integer number (50275518602568).

Almost surely, 2^{201102002220221} is an apocalyptic number.

It is an amenable number.

201102002220221 is a deficient number, since it is larger than the sum of its proper divisors (72190051).

201102002220221 is an equidigital number, since it uses as much as digits as its factorization.

201102002220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72190050.

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

Adding to 201102002220221 its reverse (122022200201102), we get a palindrome (323124202421323).

The spelling of 201102002220221 in words is "two hundred one trillion, one hundred two billion, two million, two hundred twenty thousand, two hundred twenty-one".