11220212111011 has 2 divisors, whose sum is σ = 11220212111012. Its totient is φ = 11220212111010.

The previous prime is 11220212110981. The next prime is 11220212111027. The reversal of 11220212111011 is 11011121202211.

It is an a-pointer prime, because the next prime (11220212111027) can be obtained adding 11220212111011 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11220212111011 - 2⁷ = 11220212110883 is a prime.

It is not a weakly prime, because it can be changed into another prime (11220212111041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610106055505 + 5610106055506.

It is an arithmetic number, because the mean of its divisors is an integer number (5610106055506).

Almost surely, 2^{11220212111011} is an apocalyptic number.

11220212111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220212111011 is an equidigital number, since it uses as much as digits as its factorization.

11220212111011 is an evil number, because the sum of its binary digits is even.

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

Adding to 11220212111011 its reverse (11011121202211), we get a palindrome (22231333313222).

The spelling of 11220212111011 in words is "eleven trillion, two hundred twenty billion, two hundred twelve million, one hundred eleven thousand, eleven".