12220507349 has 2 divisors, whose sum is σ = 12220507350. Its totient is φ = 12220507348.

The previous prime is 12220507339. The next prime is 12220507373. The reversal of 12220507349 is 94370502221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8147770225 + 4072737124 = 90265^2 + 63818^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220507349 - 2⁸ = 12220507093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220507339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110253674 + 6110253675.

It is an arithmetic number, because the mean of its divisors is an integer number (6110253675).

Almost surely, 2^12220507349 is an apocalyptic number.

It is an amenable number.

12220507349 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220507349 is an equidigital number, since it uses as much as digits as its factorization.

12220507349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 12220507349 in words is "twelve billion, two hundred twenty million, five hundred seven thousand, three hundred forty-nine".