11011211201011 has 12 divisors (see below), whose sum is σ = 12809094560400. Its totient is φ = 9438081856560.

The previous prime is 11011211200993. The next prime is 11011211201021. The reversal of 11011211201011 is 11010211211011.

It is not a de Polignac number, because 11011211201011 - 2²¹ = 11011209103859 is a prime.

It is a super-2 number, since 2×11011211201011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011211200982 and 11011211201000.

It is not an unprimeable number, because it can be changed into a prime (11011211201021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3737146 + ... + 5999056.

It is an arithmetic number, because the mean of its divisors is an integer number (1067424546700).

Almost surely, 2^{11011211201011} is an apocalyptic number.

11011211201011 is a deficient number, since it is larger than the sum of its proper divisors (1797883359389).

11011211201011 is an equidigital number, since it uses as much as digits as its factorization.

11011211201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361274 (or 2361267 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11011211201011 its reverse (11010211211011), we get a palindrome (22021422412022).

The spelling of 11011211201011 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred one thousand, eleven".