11011211201211 has 8 divisors (see below), whose sum is σ = 15810969930000. Its totient is φ = 6776129969952.

The previous prime is 11011211201209. The next prime is 11011211201227. The reversal of 11011211201211 is 11210211211011.

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

It is not a de Polignac number, because 11011211201211 - 2¹ = 11011211201209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11011211201611) 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 7 ways as a sum of consecutive naturals, for example, 141169374336 + ... + 141169374413.

It is an arithmetic number, because the mean of its divisors is an integer number (1976371241250).

Almost surely, 2^{11011211201211} is an apocalyptic number.

11011211201211 is a deficient number, since it is larger than the sum of its proper divisors (4799758728789).

11011211201211 is a wasteful number, since it uses less digits than its factorization.

11011211201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282338748765.

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

Adding to 11011211201211 its reverse (11210211211011), we get a palindrome (22221422412222).

The spelling of 11011211201211 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred one thousand, two hundred eleven".