11211210111001 has 8 divisors (see below), whose sum is σ = 11255738592384. Its totient is φ = 11166696026400.

The previous prime is 11211210110993. The next prime is 11211210111047. The reversal of 11211210111001 is 10011101211211.

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

It is a cyclic number.

It is not a de Polignac number, because 11211210111001 - 2³ = 11211210110993 is a prime.

It is a super-2 number, since 2×11211210111001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211210211001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2037300 + ... + 5154901.

It is an arithmetic number, because the mean of its divisors is an integer number (1406967324048).

Almost surely, 2^{11211210111001} is an apocalyptic number.

It is an amenable number.

11211210111001 is a deficient number, since it is larger than the sum of its proper divisors (44528481383).

11211210111001 is an equidigital number, since it uses as much as digits as its factorization.

11211210111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7198391.

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

Adding to 11211210111001 its reverse (10011101211211), we get a palindrome (21222311322212).

The spelling of 11211210111001 in words is "eleven trillion, two hundred eleven billion, two hundred ten million, one hundred eleven thousand, one".