10222128949 has 2 divisors, whose sum is σ = 10222128950. Its totient is φ = 10222128948.

The previous prime is 10222128913. The next prime is 10222129037. The reversal of 10222128949 is 94982122201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10217570724 + 4558225 = 101082^2 + 2135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10222128949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10222129949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111064474 + 5111064475.

It is an arithmetic number, because the mean of its divisors is an integer number (5111064475).

Almost surely, 2^10222128949 is an apocalyptic number.

It is an amenable number.

10222128949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10222128949 is an equidigital number, since it uses as much as digits as its factorization.

10222128949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 10222128949 in words is "ten billion, two hundred twenty-two million, one hundred twenty-eight thousand, nine hundred forty-nine".