11331022200121 has 4 divisors (see below), whose sum is σ = 12202639292452. Its totient is φ = 10459405107792.

The previous prime is 11331022200097. The next prime is 11331022200221. The reversal of 11331022200121 is 12100222013311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3753053798400 + 7577968401721 = 1937280^2 + 2752811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331022200121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331022200221) 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, 435808546146 + ... + 435808546171.

It is an arithmetic number, because the mean of its divisors is an integer number (3050659823113).

Almost surely, 2^{11331022200121} is an apocalyptic number.

It is an amenable number.

11331022200121 is a deficient number, since it is larger than the sum of its proper divisors (871617092331).

11331022200121 is an equidigital number, since it uses as much as digits as its factorization.

11331022200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871617092330.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11331022200121 its reverse (12100222013311), we get a palindrome (23431244213432).

The spelling of 11331022200121 in words is "eleven trillion, three hundred thirty-one billion, twenty-two million, two hundred thousand, one hundred twenty-one".