331220221103 has 2 divisors, whose sum is σ = 331220221104. Its totient is φ = 331220221102.

The previous prime is 331220221037. The next prime is 331220221141. The reversal of 331220221103 is 301122022133.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331220221103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331220221183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165610110551 + 165610110552.

It is an arithmetic number, because the mean of its divisors is an integer number (165610110552).

Almost surely, 2^331220221103 is an apocalyptic number.

331220221103 is a deficient number, since it is larger than the sum of its proper divisors (1).

331220221103 is an equidigital number, since it uses as much as digits as its factorization.

331220221103 is an evil number, because the sum of its binary digits is even.

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

Adding to 331220221103 its reverse (301122022133), we get a palindrome (632342243236).

The spelling of 331220221103 in words is "three hundred thirty-one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred three".