321214212020420 has 48 divisors (see below), whose sum is σ = 721592436101040. Its totient is φ = 119681025982464.

The previous prime is 321214212020389. The next prime is 321214212020509. The reversal of 321214212020420 is 24020212412123.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6951890884 + 321207260129536 = 83378^2 + 17922256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 321214212020420.

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, 4869800435 + ... + 4869866394.

It is an arithmetic number, because the mean of its divisors is an integer number (15033175752105).

Almost surely, 2^{321214212020420} is an apocalyptic number.

It is an amenable number.

321214212020420 is an abundant number, since it is smaller than the sum of its proper divisors (400378224080620).

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

321214212020420 is a wasteful number, since it uses less digits than its factorization.

321214212020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9739666952 (or 9739666950 counting only the distinct ones).

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

Adding to 321214212020420 its reverse (24020212412123), we get a palindrome (345234424432543).

The spelling of 321214212020420 in words is "three hundred twenty-one trillion, two hundred fourteen billion, two hundred twelve million, twenty thousand, four hundred twenty".