11220244422421 has 4 divisors (see below), whose sum is σ = 11387710757152. Its totient is φ = 11052778087692.

The previous prime is 11220244422383. The next prime is 11220244422427. The reversal of 11220244422421 is 12422444202211.

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.

It is a cyclic number.

It is not a de Polignac number, because 11220244422421 - 2³¹ = 11218096938773 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 (11220244422427) 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, 83733167265 + ... + 83733167398.

It is an arithmetic number, because the mean of its divisors is an integer number (2846927689288).

Almost surely, 2^{11220244422421} is an apocalyptic number.

It is an amenable number.

11220244422421 is a deficient number, since it is larger than the sum of its proper divisors (167466334731).

11220244422421 is an equidigital number, since it uses as much as digits as its factorization.

11220244422421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167466334730.

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 11220244422421 its reverse (12422444202211), we get a palindrome (23642688624632).

The spelling of 11220244422421 in words is "eleven trillion, two hundred twenty billion, two hundred forty-four million, four hundred twenty-two thousand, four hundred twenty-one".