10297140221 has 2 divisors, whose sum is σ = 10297140222. Its totient is φ = 10297140220.

The previous prime is 10297140199. The next prime is 10297140247. The reversal of 10297140221 is 12204179201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8553660196 + 1743480025 = 92486^2 + 41755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10297140221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10297140251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5148570110 + 5148570111.

It is an arithmetic number, because the mean of its divisors is an integer number (5148570111).

Almost surely, 2^10297140221 is an apocalyptic number.

It is an amenable number.

10297140221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10297140221 is an equidigital number, since it uses as much as digits as its factorization.

10297140221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 10297140221 in words is "ten billion, two hundred ninety-seven million, one hundred forty thousand, two hundred twenty-one".