100321221332 has 12 divisors (see below), whose sum is σ = 175564385556. Its totient is φ = 50159968320.

The previous prime is 100321221331. The next prime is 100321221401. The reversal of 100321221332 is 233122123001.

It can be written as a sum of positive squares in 2 ways, for example, as 83453965456 + 16867255876 = 288884^2 + 129874^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100321221331) 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, 442328 + ... + 629520.

It is an arithmetic number, because the mean of its divisors is an integer number (14630365463).

Almost surely, 2^100321221332 is an apocalyptic number.

It is an amenable number.

100321221332 is a deficient number, since it is larger than the sum of its proper divisors (75243164224).

100321221332 is a wasteful number, since it uses less digits than its factorization.

100321221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321178 (or 321176 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 100321221332 its reverse (233122123001), we get a palindrome (333443344333).

The spelling of 100321221332 in words is "one hundred billion, three hundred twenty-one million, two hundred twenty-one thousand, three hundred thirty-two".