11210222112221 has 4 divisors (see below), whose sum is σ = 12229333213344. Its totient is φ = 10191111011100.

The previous prime is 11210222112179. The next prime is 11210222112239. The reversal of 11210222112221 is 12221122201211.

11210222112221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11210222112221 - 2¹⁴ = 11210222095837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210222112193 and 11210222112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210222112251) 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, 509555550545 + ... + 509555550566.

It is an arithmetic number, because the mean of its divisors is an integer number (3057333303336).

Almost surely, 2^{11210222112221} is an apocalyptic number.

11210222112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11210222112221 is a deficient number, since it is larger than the sum of its proper divisors (1019111101123).

11210222112221 is a wasteful number, since it uses less digits than its factorization.

11210222112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019111101122.

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

Adding to 11210222112221 its reverse (12221122201211), we get a palindrome (23431344313432).

The spelling of 11210222112221 in words is "eleven trillion, two hundred ten billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty-one".