3231222505440 has 96 divisors (see below), whose sum is σ = 10181093368320. Its totient is φ = 861427167744.

The previous prime is 3231222505439. The next prime is 3231222505471. The reversal of 3231222505440 is 445052221323.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880077 + ... + 2690163.

It is an arithmetic number, because the mean of its divisors is an integer number (106053055920).

Almost surely, 2^{3231222505440} is an apocalyptic number.

3231222505440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3231222505440 is an abundant number, since it is smaller than the sum of its proper divisors (6949870862880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3231222505440 is a wasteful number, since it uses less digits than its factorization.

3231222505440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813824 (or 1813816 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 3231222505440 its reverse (445052221323), we get a palindrome (3676274726763).

The spelling of 3231222505440 in words is "three trillion, two hundred thirty-one billion, two hundred twenty-two million, five hundred five thousand, four hundred forty".