11112212102001 has 4 divisors (see below), whose sum is σ = 14816282802672. Its totient is φ = 7408141401332.

The previous prime is 11112212101973. The next prime is 11112212102003. The reversal of 11112212102001 is 10020121221111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11112212102001 - 2²⁷ = 11112077884273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11112212102003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1852035350331 + ... + 1852035350336.

It is an arithmetic number, because the mean of its divisors is an integer number (3704070700668).

Almost surely, 2^{11112212102001} is an apocalyptic number.

It is an amenable number.

11112212102001 is a deficient number, since it is larger than the sum of its proper divisors (3704070700671).

11112212102001 is an equidigital number, since it uses as much as digits as its factorization.

11112212102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704070700670.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112212102001 its reverse (10020121221111), we get a palindrome (21132333323112).

The spelling of 11112212102001 in words is "eleven trillion, one hundred twelve billion, two hundred twelve million, one hundred two thousand, one".