11303220210221 has 4 divisors (see below), whose sum is σ = 11462420494944. Its totient is φ = 11144019925500.

The previous prime is 11303220210203. The next prime is 11303220210259. The reversal of 11303220210221 is 12201202230311.

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-11303220210221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11303220210193 and 11303220210202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11303220230221) 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, 79600142255 + ... + 79600142396.

It is an arithmetic number, because the mean of its divisors is an integer number (2865605123736).

Almost surely, 2^{11303220210221} is an apocalyptic number.

It is an amenable number.

11303220210221 is a deficient number, since it is larger than the sum of its proper divisors (159200284723).

11303220210221 is an equidigital number, since it uses as much as digits as its factorization.

11303220210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159200284722.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11303220210221 its reverse (12201202230311), we get a palindrome (23504422440532).

The spelling of 11303220210221 in words is "eleven trillion, three hundred three billion, two hundred twenty million, two hundred ten thousand, two hundred twenty-one".