11220001211 has 2 divisors, whose sum is σ = 11220001212. Its totient is φ = 11220001210.

The previous prime is 11220001189. The next prime is 11220001229. The reversal of 11220001211 is 11210002211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11220001211 - 2⁶ = 11220001147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220001192 and 11220001201.

It is not a weakly prime, because it can be changed into another prime (11220001271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610000605 + 5610000606.

It is an arithmetic number, because the mean of its divisors is an integer number (5610000606).

Almost surely, 2^11220001211 is an apocalyptic number.

11220001211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220001211 is an equidigital number, since it uses as much as digits as its factorization.

11220001211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11220001211 its reverse (11210002211), we get a palindrome (22430003422).

It can be divided in two parts, 1122000 and 1211, that added together give a palindrome (1123211).

The spelling of 11220001211 in words is "eleven billion, two hundred twenty million, one thousand, two hundred eleven".