103333221221 has 2 divisors, whose sum is σ = 103333221222. Its totient is φ = 103333221220.

The previous prime is 103333221133. The next prime is 103333221223. The reversal of 103333221221 is 122122333301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99926164321 + 3407056900 = 316111^2 + 58370^2 .

It is an emirp because it is prime and its reverse (122122333301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103333221221 - 2¹⁸ = 103332959077 is a prime.

Together with 103333221223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103333221223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51666610610 + 51666610611.

It is an arithmetic number, because the mean of its divisors is an integer number (51666610611).

Almost surely, 2^103333221221 is an apocalyptic number.

It is an amenable number.

103333221221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103333221221 is an equidigital number, since it uses as much as digits as its factorization.

103333221221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 103333221221 its reverse (122122333301), we get a palindrome (225455554522).

The spelling of 103333221221 in words is "one hundred three billion, three hundred thirty-three million, two hundred twenty-one thousand, two hundred twenty-one".