11102101202221 has 2 divisors, whose sum is σ = 11102101202222. Its totient is φ = 11102101202220.

The previous prime is 11102101202177. The next prime is 11102101202293. The reversal of 11102101202221 is 12220210120111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8302402569321 + 2799698632900 = 2881389^2 + 1673230^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102101202221 - 2¹¹ = 11102101200173 is a prime.

It is a super-2 number, since 2×11102101202221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11102101202195 and 11102101202204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11102101302221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551050601110 + 5551050601111.

It is an arithmetic number, because the mean of its divisors is an integer number (5551050601111).

Almost surely, 2^{11102101202221} is an apocalyptic number.

It is an amenable number.

11102101202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102101202221 is an equidigital number, since it uses as much as digits as its factorization.

11102101202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11102101202221 its reverse (12220210120111), we get a palindrome (23322311322332).

The spelling of 11102101202221 in words is "eleven trillion, one hundred two billion, one hundred one million, two hundred two thousand, two hundred twenty-one".