321132225420 has 72 divisors (see below), whose sum is σ = 981109081680. Its totient is φ = 85019172480.

The previous prime is 321132225383. The next prime is 321132225439. The reversal of 321132225420 is 24522231123.

321132225420 is a `hidden beast` number, since 3 + 2 + 1 + 13 + 2 + 225 + 420 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6392491 + ... + 6442530.

Almost surely, 2^321132225420 is an apocalyptic number.

321132225420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321132225420 is an abundant number, since it is smaller than the sum of its proper divisors (659976856260).

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

321132225420 is a wasteful number, since it uses less digits than its factorization.

321132225420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12835175 (or 12835170 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 321132225420 its reverse (24522231123), we get a palindrome (345654456543).

The spelling of 321132225420 in words is "three hundred twenty-one billion, one hundred thirty-two million, two hundred twenty-five thousand, four hundred twenty".