221102120115211 has 2 divisors, whose sum is σ = 221102120115212. Its totient is φ = 221102120115210.

The previous prime is 221102120115161. The next prime is 221102120115259. The reversal of 221102120115211 is 112511021201122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221102120115211 - 2⁹ = 221102120114699 is a prime.

It is a super-2 number, since 2×221102120115211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221102120115271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551060057605 + 110551060057606.

It is an arithmetic number, because the mean of its divisors is an integer number (110551060057606).

Almost surely, 2^{221102120115211} is an apocalyptic number.

221102120115211 is a deficient number, since it is larger than the sum of its proper divisors (1).

221102120115211 is an equidigital number, since it uses as much as digits as its factorization.

221102120115211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 22.

Adding to 221102120115211 its reverse (112511021201122), we get a palindrome (333613141316333).

The spelling of 221102120115211 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred twenty million, one hundred fifteen thousand, two hundred eleven".