11121002121201 has 32 divisors (see below), whose sum is σ = 17341064260608. Its totient is φ = 6206829128640.

The previous prime is 11121002121199. The next prime is 11121002121247. The reversal of 11121002121201 is 10212120012111.

It is a happy number.

It is not a de Polignac number, because 11121002121201 - 2¹ = 11121002121199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121002121601) 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 31 ways as a sum of consecutive naturals, for example, 24345235 + ... + 24797831.

It is an arithmetic number, because the mean of its divisors is an integer number (541908258144).

Almost surely, 2^{11121002121201} is an apocalyptic number.

It is an amenable number.

11121002121201 is a deficient number, since it is larger than the sum of its proper divisors (6220062139407).

11121002121201 is a wasteful number, since it uses less digits than its factorization.

11121002121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479861.

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

Adding to 11121002121201 its reverse (10212120012111), we get a palindrome (21333122133312).

The spelling of 11121002121201 in words is "eleven trillion, one hundred twenty-one billion, two million, one hundred twenty-one thousand, two hundred one".