11401204104221 has 4 divisors (see below), whose sum is σ = 11406907560000. Its totient is φ = 11395500648444.

The previous prime is 11401204104139. The next prime is 11401204104239. The reversal of 11401204104221 is 12240140210411.

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 a de Polignac number, because none of the positive numbers 2^k-11401204104221 is a prime.

It is a super-2 number, since 2×11401204104221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401204104721) 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, 2851724891 + ... + 2851728888.

It is an arithmetic number, because the mean of its divisors is an integer number (2851726890000).

Almost surely, 2^{11401204104221} is an apocalyptic number.

It is an amenable number.

11401204104221 is a deficient number, since it is larger than the sum of its proper divisors (5703455779).

11401204104221 is an equidigital number, since it uses as much as digits as its factorization.

11401204104221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703455778.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 11401204104221 its reverse (12240140210411), we get a palindrome (23641344314632).

The spelling of 11401204104221 in words is "eleven trillion, four hundred one billion, two hundred four million, one hundred four thousand, two hundred twenty-one".