11211210110001 has 32 divisors (see below), whose sum is σ = 17155456819200. Its totient is φ = 6449180924480.

The previous prime is 11211210109951. The next prime is 11211210110017. The reversal of 11211210110001 is 10001101211211.

It is not a de Polignac number, because 11211210110001 - 2⁶ = 11211210109937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211210810001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99222801 + ... + 99335726.

It is an arithmetic number, because the mean of its divisors is an integer number (536108025600).

Almost surely, 2^{11211210110001} is an apocalyptic number.

11211210110001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11211210110001 is a deficient number, since it is larger than the sum of its proper divisors (5944246709199).

11211210110001 is a wasteful number, since it uses less digits than its factorization.

11211210110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198558629.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11211210110001 its reverse (10001101211211), we get a palindrome (21212311321212).

The spelling of 11211210110001 in words is "eleven trillion, two hundred eleven billion, two hundred ten million, one hundred ten thousand, one".