11210222211221 has 8 divisors (see below), whose sum is σ = 12350415830688. Its totient is φ = 10090209010000.

The previous prime is 11210222211217. The next prime is 11210222211239. The reversal of 11210222211221 is 12211222201211.

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

It is a cyclic number.

It is not a de Polignac number, because 11210222211221 - 2² = 11210222211217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11210222211193 and 11210222211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210222211211) 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, 5045103395 + ... + 5045105616.

It is an arithmetic number, because the mean of its divisors is an integer number (1543801978836).

Almost surely, 2^{11210222211221} is an apocalyptic number.

11210222211221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11210222211221 is a deficient number, since it is larger than the sum of its proper divisors (1140193619467).

11210222211221 is a wasteful number, since it uses less digits than its factorization.

11210222211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10090209123.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11210222211221 its reverse (12211222201211), we get a palindrome (23421444412432).

The spelling of 11210222211221 in words is "eleven trillion, two hundred ten billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twenty-one".