321223322106 has 20 divisors (see below), whose sum is σ = 719778185082. Its totient is φ = 107074440648.

The previous prime is 321223322051. The next prime is 321223322107. The reversal of 321223322106 is 601223322123.

321223322106 is a `hidden beast` number, since 3 + 212 + 23 + 322 + 106 = 666.

It can be written as a sum of positive squares in only one way, i.e., 191720503881 + 129502818225 = 437859^2 + 359865^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 321223322106.

It is not an unprimeable number, because it can be changed into a prime (321223322107) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 991429845 + ... + 991430168.

Almost surely, 2^321223322106 is an apocalyptic number.

321223322106 is an abundant number, since it is smaller than the sum of its proper divisors (398554862976).

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

321223322106 is a wasteful number, since it uses less digits than its factorization.

321223322106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982860027 (or 1982860018 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 321223322106 its reverse (601223322123), we get a palindrome (922446644229).

The spelling of 321223322106 in words is "three hundred twenty-one billion, two hundred twenty-three million, three hundred twenty-two thousand, one hundred six".