11012211211211 has 8 divisors (see below), whose sum is σ = 12622729597920. Its totient is φ = 9411029163648.

The previous prime is 11012211211201. The next prime is 11012211211249. The reversal of 11012211211211 is 11211211221011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11012211211211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11012211211211.

It is not an unprimeable number, because it can be changed into a prime (11012211211201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2334082256 + ... + 2334086973.

It is an arithmetic number, because the mean of its divisors is an integer number (1577841199740).

Almost surely, 2^{11012211211211} is an apocalyptic number.

11012211211211 is a deficient number, since it is larger than the sum of its proper divisors (1610518386709).

11012211211211 is an equidigital number, since it uses as much as digits as its factorization.

11012211211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668169573.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11012211211211 its reverse (11211211221011), we get a palindrome (22223422432222).

The spelling of 11012211211211 in words is "eleven trillion, twelve billion, two hundred eleven million, two hundred eleven thousand, two hundred eleven".