103321210221 has 6 divisors (see below), whose sum is σ = 149241748110. Its totient is φ = 68880806808.

The previous prime is 103321210207. The next prime is 103321210229. The reversal of 103321210221 is 122012123301.

103321210221 is a `hidden beast` number, since 103 + 321 + 21 + 0 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61628062500 + 41693147721 = 248250^2 + 204189^2 .

It is not a de Polignac number, because 103321210221 - 2⁹ = 103321209709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103321210194 and 103321210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103321210229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5740067226 + ... + 5740067243.

It is an arithmetic number, because the mean of its divisors is an integer number (24873624685).

Almost surely, 2^103321210221 is an apocalyptic number.

It is an amenable number.

103321210221 is a deficient number, since it is larger than the sum of its proper divisors (45920537889).

103321210221 is a wasteful number, since it uses less digits than its factorization.

103321210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11480134475 (or 11480134472 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 103321210221 its reverse (122012123301), we get a palindrome (225333333522).

The spelling of 103321210221 in words is "one hundred three billion, three hundred twenty-one million, two hundred ten thousand, two hundred twenty-one".