103201331221 has 4 divisors (see below), whose sum is σ = 104114617452. Its totient is φ = 102288044992.

The previous prime is 103201331213. The next prime is 103201331243. The reversal of 103201331221 is 122133102301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23047794225 + 80153536996 = 151815^2 + 283114^2 .

It is a cyclic number.

It is not a de Polignac number, because 103201331221 - 2³ = 103201331213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103201331621) 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, 456642946 + ... + 456643171.

It is an arithmetic number, because the mean of its divisors is an integer number (26028654363).

Almost surely, 2^103201331221 is an apocalyptic number.

It is an amenable number.

103201331221 is a deficient number, since it is larger than the sum of its proper divisors (913286231).

103201331221 is an equidigital number, since it uses as much as digits as its factorization.

103201331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913286230.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103201331221 its reverse (122133102301), we get a palindrome (225334433522).

The spelling of 103201331221 in words is "one hundred three billion, two hundred one million, three hundred thirty-one thousand, two hundred twenty-one".