321224421124 has 12 divisors (see below), whose sum is σ = 563247146700. Its totient is φ = 160296664928.

The previous prime is 321224421121. The next prime is 321224421149. The reversal of 321224421124 is 421124422123.

It can be written as a sum of positive squares in 2 ways, for example, as 93533212224 + 227691208900 = 305832^2 + 477170^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321224421092 and 321224421101.

It is not an unprimeable number, because it can be changed into a prime (321224421121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78884119 + ... + 78888190.

It is an arithmetic number, because the mean of its divisors is an integer number (46937262225).

Almost surely, 2^321224421124 is an apocalyptic number.

It is an amenable number.

321224421124 is a deficient number, since it is larger than the sum of its proper divisors (242022725576).

321224421124 is a wasteful number, since it uses less digits than its factorization.

321224421124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157772822 (or 157772820 counting only the distinct ones).

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

Adding to 321224421124 its reverse (421124422123), we get a palindrome (742348843247).

Subtracting 321224421124 from its reverse (421124422123), we obtain a palindrome (99900000999).

The spelling of 321224421124 in words is "three hundred twenty-one billion, two hundred twenty-four million, four hundred twenty-one thousand, one hundred twenty-four".