11043501035221 has 4 divisors (see below), whose sum is σ = 11043527592352. Its totient is φ = 11043474478092.

The previous prime is 11043501035219. The next prime is 11043501035257. The reversal of 11043501035221 is 12253010534011.

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 11043501035221 - 2¹ = 11043501035219 is a prime.

It is a super-2 number, since 2×11043501035221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11043501035221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11043501033221) 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, 12644721 + ... + 13489846.

It is an arithmetic number, because the mean of its divisors is an integer number (2760881898088).

Almost surely, 2^{11043501035221} is an apocalyptic number.

It is an amenable number.

11043501035221 is a deficient number, since it is larger than the sum of its proper divisors (26557131).

11043501035221 is an equidigital number, since it uses as much as digits as its factorization.

11043501035221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26557130.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 11043501035221 its reverse (12253010534011), we get a palindrome (23296511569232).

The spelling of 11043501035221 in words is "eleven trillion, forty-three billion, five hundred one million, thirty-five thousand, two hundred twenty-one".