321224011400420 has 24 divisors (see below), whose sum is σ = 674826622465464. Its totient is φ = 128440804841216.

The previous prime is 321224011400363. The next prime is 321224011400423. The reversal of 321224011400420 is 24004110422123.

It can be written as a sum of positive squares in 4 ways, for example, as 130511677696 + 321093499722724 = 361264^2 + 17919082^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 321224011400420.

It is not an unprimeable number, because it can be changed into a prime (321224011400423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3049928459 + ... + 3050033778.

It is an arithmetic number, because the mean of its divisors is an integer number (28117775936061).

Almost surely, 2^{321224011400420} is an apocalyptic number.

It is an amenable number.

321224011400420 is an abundant number, since it is smaller than the sum of its proper divisors (353602611065044).

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

321224011400420 is a wasteful number, since it uses less digits than its factorization.

321224011400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099964879 (or 6099964877 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 321224011400420 its reverse (24004110422123), we get a palindrome (345228121822543).

The spelling of 321224011400420 in words is "three hundred twenty-one trillion, two hundred twenty-four billion, eleven million, four hundred thousand, four hundred twenty".