11222202220221 has 8 divisors (see below), whose sum is σ = 14962960863040. Its totient is φ = 7481455862112.

The previous prime is 11222202220213. The next prime is 11222202220231. The reversal of 11222202220221 is 12202220222211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11222202220221 - 2³ = 11222202220213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222202220211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671881 + ... + 4784958.

It is an arithmetic number, because the mean of its divisors is an integer number (1870370107880).

Almost surely, 2^{11222202220221} is an apocalyptic number.

It is an amenable number.

11222202220221 is a deficient number, since it is larger than the sum of its proper divisors (3740758642819).

11222202220221 is an equidigital number, since it uses as much as digits as its factorization.

11222202220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6142355.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 11222202220221 its reverse (12202220222211), we get a palindrome (23424422442432).

The spelling of 11222202220221 in words is "eleven trillion, two hundred twenty-two billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".