11212100120001 has 64 divisors (see below), whose sum is σ = 17329110451200. Its totient is φ = 6382737043200.

The previous prime is 11212100119993. The next prime is 11212100120003. The reversal of 11212100120001 is 10002100121211.

It is not a de Polignac number, because 11212100120001 - 2³ = 11212100119993 is a prime.

It is a super-2 number, since 2×11212100120001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212100120003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 357296530 + ... + 357327908.

It is an arithmetic number, because the mean of its divisors is an integer number (270767350800).

Almost surely, 2^{11212100120001} is an apocalyptic number.

11212100120001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11212100120001 is a deficient number, since it is larger than the sum of its proper divisors (6117010331199).

11212100120001 is a wasteful number, since it uses less digits than its factorization.

11212100120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41550.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11212100120001 its reverse (10002100121211), we get a palindrome (21214200241212).

The spelling of 11212100120001 in words is "eleven trillion, two hundred twelve billion, one hundred million, one hundred twenty thousand, one".