11211012011201 has 4 divisors (see below), whose sum is σ = 11275815549012. Its totient is φ = 11146208473392.

The previous prime is 11211012011191. The next prime is 11211012011203. The reversal of 11211012011201 is 10211021011211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7830617208976 + 3380394802225 = 2798324^2 + 1838585^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211012011201 - 2⁶ = 11211012011137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211012011203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32401768646 + ... + 32401768991.

It is an arithmetic number, because the mean of its divisors is an integer number (2818953887253).

Almost surely, 2^{11211012011201} is an apocalyptic number.

It is an amenable number.

11211012011201 is a deficient number, since it is larger than the sum of its proper divisors (64803537811).

11211012011201 is an equidigital number, since it uses as much as digits as its factorization.

11211012011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64803537810.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11211012011201 its reverse (10211021011211), we get a palindrome (21422033022412).

The spelling of 11211012011201 in words is "eleven trillion, two hundred eleven billion, twelve million, eleven thousand, two hundred one".