1144220420013 has 32 divisors (see below), whose sum is σ = 1677461018112. Its totient is φ = 687994507200.

The previous prime is 1144220419967. The next prime is 1144220420069. The reversal of 1144220420013 is 3100240224411.

It is not a de Polignac number, because 1144220420013 - 2²⁵ = 1144186865581 is a prime.

It is a super-2 number, since 2×1144220420013² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144220420113) 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 31 ways as a sum of consecutive naturals, for example, 17661706 + ... + 17726372.

It is an arithmetic number, because the mean of its divisors is an integer number (52420656816).

Almost surely, 2^{1144220420013} is an apocalyptic number.

It is an amenable number.

1144220420013 is a deficient number, since it is larger than the sum of its proper divisors (533240598099).

1144220420013 is a wasteful number, since it uses less digits than its factorization.

1144220420013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68905.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1144220420013 its reverse (3100240224411), we get a palindrome (4244460644424).

The spelling of 1144220420013 in words is "one trillion, one hundred forty-four billion, two hundred twenty million, four hundred twenty thousand, thirteen".