2211440343431 has 8 divisors (see below), whose sum is σ = 2427846493584. Its totient is φ = 1997595213120.

The previous prime is 2211440343407. The next prime is 2211440343433. The reversal of 2211440343431 is 1343430441122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2211440343431 - 2⁶ = 2211440343367 is a prime.

It is a super-2 number, since 2×2211440343431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211440343433) 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 7 ways as a sum of consecutive naturals, for example, 640253150 + ... + 640256603.

It is an arithmetic number, because the mean of its divisors is an integer number (303480811698).

Almost surely, 2^{2211440343431} is an apocalyptic number.

2211440343431 is a deficient number, since it is larger than the sum of its proper divisors (216406150153).

2211440343431 is a wasteful number, since it uses less digits than its factorization.

2211440343431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280509921.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 2211440343431 its reverse (1343430441122), we get a palindrome (3554870784553).

The spelling of 2211440343431 in words is "two trillion, two hundred eleven billion, four hundred forty million, three hundred forty-three thousand, four hundred thirty-one".