40331222421 has 16 divisors (see below), whose sum is σ = 61460281344. Its totient is φ = 23045220144.

The previous prime is 40331222389. The next prime is 40331222489. The reversal of 40331222421 is 12422213304.

It is a happy number.

It is not a de Polignac number, because 40331222421 - 2⁵ = 40331222389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40331222391 and 40331222400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40331222021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514960 + ... + 588086.

It is an arithmetic number, because the mean of its divisors is an integer number (3841267584).

Almost surely, 2^40331222421 is an apocalyptic number.

It is an amenable number.

40331222421 is a deficient number, since it is larger than the sum of its proper divisors (21129058923).

40331222421 is a wasteful number, since it uses less digits than its factorization.

40331222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99400.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40331222421 its reverse (12422213304), we get a palindrome (52753435725).

The spelling of 40331222421 in words is "forty billion, three hundred thirty-one million, two hundred twenty-two thousand, four hundred twenty-one".