321211211242 has 16 divisors (see below), whose sum is σ = 489306254472. Its totient is φ = 158126284800.

The previous prime is 321211211239. The next prime is 321211211281. The reversal of 321211211242 is 242112112123.

It can be written as a sum of positive squares in 4 ways, for example, as 295132514121 + 26078697121 = 543261^2 + 161489^2 .

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, 4252009 + ... + 4326892.

Almost surely, 2^321211211242 is an apocalyptic number.

321211211242 is a deficient number, since it is larger than the sum of its proper divisors (168095043230).

321211211242 is a wasteful number, since it uses less digits than its factorization.

321211211242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8579193.

The product of its digits is 384, while the sum is 22.

Adding to 321211211242 its reverse (242112112123), we get a palindrome (563323323365).

The spelling of 321211211242 in words is "three hundred twenty-one billion, two hundred eleven million, two hundred eleven thousand, two hundred forty-two".