11241401221 has 4 divisors (see below), whose sum is σ = 11256613600. Its totient is φ = 11226188844.

The previous prime is 11241401141. The next prime is 11241401239. The reversal of 11241401221 is 12210414211.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12210414211 = 2287 ⋅5339053.

It is a cyclic number.

It is not a de Polignac number, because 11241401221 - 2¹¹ = 11241399173 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 (11241401261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7605081 + ... + 7606558.

It is an arithmetic number, because the mean of its divisors is an integer number (2814153400).

Almost surely, 2^11241401221 is an apocalyptic number.

It is an amenable number.

11241401221 is a deficient number, since it is larger than the sum of its proper divisors (15212379).

11241401221 is an equidigital number, since it uses as much as digits as its factorization.

11241401221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15212378.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11241401221 its reverse (12210414211), we get a palindrome (23451815432).

The spelling of 11241401221 in words is "eleven billion, two hundred forty-one million, four hundred one thousand, two hundred twenty-one".