11220111011211 has 16 divisors (see below), whose sum is σ = 14991115575168. Its totient is φ = 7464591243200.

The previous prime is 11220111011209. The next prime is 11220111011269. The reversal of 11220111011211 is 11211011102211.

11220111011211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11220111011211 - 2¹ = 11220111011209 is a prime.

It is a super-2 number, since 2×11220111011211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11220111021211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51211480 + ... + 51430106.

It is an arithmetic number, because the mean of its divisors is an integer number (936944723448).

Almost surely, 2^{11220111011211} is an apocalyptic number.

11220111011211 is a deficient number, since it is larger than the sum of its proper divisors (3771004563957).

11220111011211 is a wasteful number, since it uses less digits than its factorization.

11220111011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253962.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11220111011211 its reverse (11211011102211), we get a palindrome (22431122113422).

The spelling of 11220111011211 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, eleven thousand, two hundred eleven".