321400241142220 has 24 divisors (see below), whose sum is σ = 710463690946800. Its totient is φ = 121793775590592.

The previous prime is 321400241142193. The next prime is 321400241142241. The reversal of 321400241142220 is 22241142004123.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422895053755 + ... + 422895054514.

It is an arithmetic number, because the mean of its divisors is an integer number (29602653789450).

Almost surely, 2^{321400241142220} is an apocalyptic number.

It is an amenable number.

321400241142220 is an abundant number, since it is smaller than the sum of its proper divisors (389063449804580).

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

321400241142220 is a wasteful number, since it uses less digits than its factorization.

321400241142220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845790108297 (or 845790108295 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 321400241142220 its reverse (22241142004123), we get a palindrome (343641383146343).

The spelling of 321400241142220 in words is "three hundred twenty-one trillion, four hundred billion, two hundred forty-one million, one hundred forty-two thousand, two hundred twenty".