11211211201001 has 8 divisors (see below), whose sum is σ = 12967184040384. Its totient is φ = 9493831171440.

The previous prime is 11211211200971. The next prime is 11211211201129. The reversal of 11211211201001 is 10010211211211.

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

It is not a de Polignac number, because 11211211201001 - 2¹⁰ = 11211211199977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211211201901) 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 7 ways as a sum of consecutive naturals, for example, 9648201830 + ... + 9648202991.

It is an arithmetic number, because the mean of its divisors is an integer number (1620898005048).

Almost surely, 2^{11211211201001} is an apocalyptic number.

It is an amenable number.

11211211201001 is a deficient number, since it is larger than the sum of its proper divisors (1755972839383).

11211211201001 is an equidigital number, since it uses as much as digits as its factorization.

11211211201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19296404911.

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

Adding to 11211211201001 its reverse (10010211211211), we get a palindrome (21221422412212).

The spelling of 11211211201001 in words is "eleven trillion, two hundred eleven billion, two hundred eleven million, two hundred one thousand, one".