13221210049 has 2 divisors, whose sum is σ = 13221210050. Its totient is φ = 13221210048.

The previous prime is 13221210019. The next prime is 13221210127. The reversal of 13221210049 is 94001212231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12996000000 + 225210049 = 114000^2 + 15007^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221210049 - 2⁷ = 13221209921 is a prime.

It is not a weakly prime, because it can be changed into another prime (13221210019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610605024 + 6610605025.

It is an arithmetic number, because the mean of its divisors is an integer number (6610605025).

Almost surely, 2^13221210049 is an apocalyptic number.

It is an amenable number.

13221210049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221210049 is an equidigital number, since it uses as much as digits as its factorization.

13221210049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 13221210049 in words is "thirteen billion, two hundred twenty-one million, two hundred ten thousand, forty-nine".