11254122421 has 4 divisors (see below), whose sum is σ = 11310676000. Its totient is φ = 11197568844.

The previous prime is 11254122409. The next prime is 11254122461. The reversal of 11254122421 is 12422145211.

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 11254122421 - 2²¹ = 11252025269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11254122401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28276491 + ... + 28276888.

It is an arithmetic number, because the mean of its divisors is an integer number (2827669000).

Almost surely, 2^11254122421 is an apocalyptic number.

It is an amenable number.

11254122421 is a deficient number, since it is larger than the sum of its proper divisors (56553579).

11254122421 is an equidigital number, since it uses as much as digits as its factorization.

11254122421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56553578.

The product of its digits is 1280, while the sum is 25.

Adding to 11254122421 its reverse (12422145211), we get a palindrome (23676267632).

The spelling of 11254122421 in words is "eleven billion, two hundred fifty-four million, one hundred twenty-two thousand, four hundred twenty-one".