11420041013221 has 4 divisors (see below), whose sum is σ = 11423502684000. Its totient is φ = 11416579342444.

The previous prime is 11420041013203. The next prime is 11420041013261. The reversal of 11420041013221 is 12231014002411.

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 11420041013221 - 2⁵ = 11420041013189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11420041013192 and 11420041013201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420041013201) 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, 1730830441 + ... + 1730837038.

It is an arithmetic number, because the mean of its divisors is an integer number (2855875671000).

Almost surely, 2^{11420041013221} is an apocalyptic number.

It is an amenable number.

11420041013221 is a deficient number, since it is larger than the sum of its proper divisors (3461670779).

11420041013221 is an equidigital number, since it uses as much as digits as its factorization.

11420041013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461670778.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11420041013221 its reverse (12231014002411), we get a palindrome (23651055015632).

The spelling of 11420041013221 in words is "eleven trillion, four hundred twenty billion, forty-one million, thirteen thousand, two hundred twenty-one".