40102221443 has 4 divisors (see below), whose sum is σ = 41034831288. Its totient is φ = 39169611600.

The previous prime is 40102221431. The next prime is 40102221461. The reversal of 40102221443 is 34412220104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40102221443 - 2¹⁰ = 40102220419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40102221403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466304858 + ... + 466304943.

It is an arithmetic number, because the mean of its divisors is an integer number (10258707822).

Almost surely, 2^40102221443 is an apocalyptic number.

40102221443 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40102221443 is a deficient number, since it is larger than the sum of its proper divisors (932609845).

40102221443 is an equidigital number, since it uses as much as digits as its factorization.

40102221443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932609844.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40102221443 its reverse (34412220104), we get a palindrome (74514441547).

The spelling of 40102221443 in words is "forty billion, one hundred two million, two hundred twenty-one thousand, four hundred forty-three".