11220101211 has 16 divisors (see below), whose sum is σ = 16481737728. Its totient is φ = 6732732000.

The previous prime is 11220101173. The next prime is 11220101231. The reversal of 11220101211 is 11210102211.

It is not a de Polignac number, because 11220101211 - 2²⁷ = 11085883483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220101231) 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, 1679851 + ... + 1686516.

It is an arithmetic number, because the mean of its divisors is an integer number (1030108608).

Almost surely, 2^11220101211 is an apocalyptic number.

11220101211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11220101211 is a deficient number, since it is larger than the sum of its proper divisors (5261636517).

11220101211 is a wasteful number, since it uses less digits than its factorization.

11220101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366482.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11220101211 its reverse (11210102211), we get a palindrome (22430203422).

The spelling of 11220101211 in words is "eleven billion, two hundred twenty million, one hundred one thousand, two hundred eleven".