221102021411 has 2 divisors, whose sum is σ = 221102021412. Its totient is φ = 221102021410.

The previous prime is 221102021363. The next prime is 221102021417. The reversal of 221102021411 is 114120201122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221102021411 - 2¹⁰ = 221102020387 is a prime.

It is a super-2 number, since 2×221102021411² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221102021411.

It is not a weakly prime, because it can be changed into another prime (221102021417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551010705 + 110551010706.

It is an arithmetic number, because the mean of its divisors is an integer number (110551010706).

Almost surely, 2^221102021411 is an apocalyptic number.

221102021411 is a deficient number, since it is larger than the sum of its proper divisors (1).

221102021411 is an equidigital number, since it uses as much as digits as its factorization.

221102021411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221102021411 its reverse (114120201122), we get a palindrome (335222222533).

The spelling of 221102021411 in words is "two hundred twenty-one billion, one hundred two million, twenty-one thousand, four hundred eleven".