40232311221 has 16 divisors (see below), whose sum is σ = 55489167360. Its totient is φ = 25902112560.

The previous prime is 40232311201. The next prime is 40232311237. The reversal of 40232311221 is 12211323204.

It is not a de Polignac number, because 40232311221 - 2⁹ = 40232310709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40232311201) 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 15 ways as a sum of consecutive naturals, for example, 407025 + ... + 496118.

It is an arithmetic number, because the mean of its divisors is an integer number (3468072960).

Almost surely, 2^40232311221 is an apocalyptic number.

It is an amenable number.

40232311221 is a deficient number, since it is larger than the sum of its proper divisors (15256856139).

40232311221 is a wasteful number, since it uses less digits than its factorization.

40232311221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903656.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 40232311221 its reverse (12211323204), we get a palindrome (52443634425).

The spelling of 40232311221 in words is "forty billion, two hundred thirty-two million, three hundred eleven thousand, two hundred twenty-one".