11102122011221 has 16 divisors (see below), whose sum is σ = 11266410683520. Its totient is φ = 10938056458560.

The previous prime is 11102122011157. The next prime is 11102122011251. The reversal of 11102122011221 is 12211022120111.

It is a cyclic number.

It is not a de Polignac number, because 11102122011221 - 2⁶ = 11102122011157 is a prime.

It is a super-2 number, since 2×11102122011221² (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 11102122011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102122011251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702791495 + ... + 702807291.

It is an arithmetic number, because the mean of its divisors is an integer number (704150667720).

Almost surely, 2^{11102122011221} is an apocalyptic number.

It is an amenable number.

11102122011221 is a deficient number, since it is larger than the sum of its proper divisors (164288672299).

11102122011221 is a wasteful number, since it uses less digits than its factorization.

11102122011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22204.

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

Adding to 11102122011221 its reverse (12211022120111), we get a palindrome (23313144131332).

The spelling of 11102122011221 in words is "eleven trillion, one hundred two billion, one hundred twenty-two million, eleven thousand, two hundred twenty-one".