11210201222221 has 4 divisors (see below), whose sum is σ = 11212818597792. Its totient is φ = 11207583846652.

The previous prime is 11210201222191. The next prime is 11210201222291. The reversal of 11210201222221 is 12222210201211.

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 11210201222221 - 2¹³ = 11210201214029 is a prime.

It is a super-2 number, since 2×11210201222221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210201222291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308681361 + ... + 1308689926.

It is an arithmetic number, because the mean of its divisors is an integer number (2803204649448).

Almost surely, 2^{11210201222221} is an apocalyptic number.

It is an amenable number.

11210201222221 is a deficient number, since it is larger than the sum of its proper divisors (2617375571).

11210201222221 is an equidigital number, since it uses as much as digits as its factorization.

11210201222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617375570.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11210201222221 its reverse (12222210201211), we get a palindrome (23432411423432).

The spelling of 11210201222221 in words is "eleven trillion, two hundred ten billion, two hundred one million, two hundred twenty-two thousand, two hundred twenty-one".