11221021101211 has 8 divisors (see below), whose sum is σ = 11459854471680. Its totient is φ = 10982191407528.

The previous prime is 11221021101197. The next prime is 11221021101253. The reversal of 11221021101211 is 11210112012211.

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 11221021101211 - 2²¹ = 11221019004059 is a prime.

It is a super-2 number, since 2×11221021101211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221021101271) 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, 5760610 + ... + 7458328.

It is an arithmetic number, because the mean of its divisors is an integer number (1432481808960).

Almost surely, 2^{11221021101211} is an apocalyptic number.

11221021101211 is a deficient number, since it is larger than the sum of its proper divisors (238833370469).

11221021101211 is a wasteful number, since it uses less digits than its factorization.

11221021101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838393.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11221021101211 its reverse (11210112012211), we get a palindrome (22431133113422).

The spelling of 11221021101211 in words is "eleven trillion, two hundred twenty-one billion, twenty-one million, one hundred one thousand, two hundred eleven".