11212201101001 has 4 divisors (see below), whose sum is σ = 11212319267604. Its totient is φ = 11212082934400.

The previous prime is 11212201100983. The next prime is 11212201101011. The reversal of 11212201101001 is 10010110221211.

It is a happy number.

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 10099811120400 + 1112389980601 = 3178020^2 + 1054699^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212201101001 - 2³³ = 11203611166409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212201101011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58940860 + ... + 59130781.

It is an arithmetic number, because the mean of its divisors is an integer number (2803079816901).

Almost surely, 2^{11212201101001} is an apocalyptic number.

It is an amenable number.

11212201101001 is a deficient number, since it is larger than the sum of its proper divisors (118166603).

11212201101001 is an equidigital number, since it uses as much as digits as its factorization.

11212201101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118166602.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11212201101001 its reverse (10010110221211), we get a palindrome (21222311322212).

The spelling of 11212201101001 in words is "eleven trillion, two hundred twelve billion, two hundred one million, one hundred one thousand, one".