11021202121211 has 8 divisors (see below), whose sum is σ = 11146830814800. Its totient is φ = 10895613315840.

The previous prime is 11021202121177. The next prime is 11021202121213. The reversal of 11021202121211 is 11212120212011.

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 11021202121211 - 2³⁸ = 10746324214267 is a prime.

It is a super-2 number, since 2×11021202121211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021202121211.

It is not an unprimeable number, because it can be changed into a prime (11021202121213) 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, 9416126 + ... + 10521683.

It is an arithmetic number, because the mean of its divisors is an integer number (1393353851850).

Almost surely, 2^{11021202121211} is an apocalyptic number.

11021202121211 is a deficient number, since it is larger than the sum of its proper divisors (125628693589).

11021202121211 is an equidigital number, since it uses as much as digits as its factorization.

11021202121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19944109.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11021202121211 its reverse (11212120212011), we get a palindrome (22233322333222).

The spelling of 11021202121211 in words is "eleven trillion, twenty-one billion, two hundred two million, one hundred twenty-one thousand, two hundred eleven".