9869229901 has 2 divisors, whose sum is σ = 9869229902. Its totient is φ = 9869229900.

The previous prime is 9869229899. The next prime is 9869229947. The reversal of 9869229901 is 1099229689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7538754276 + 2330475625 = 86826^2 + 48275^2 .

It is a cyclic number.

It is not a de Polignac number, because 9869229901 - 2¹ = 9869229899 is a prime.

Together with 9869229899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9869229971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4934614950 + 4934614951.

It is an arithmetic number, because the mean of its divisors is an integer number (4934614951).

Almost surely, 2^9869229901 is an apocalyptic number.

It is an amenable number.

9869229901 is a deficient number, since it is larger than the sum of its proper divisors (1).

9869229901 is an equidigital number, since it uses as much as digits as its factorization.

9869229901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The square root of 9869229901 is about 99343.9978106378. The cubic root of 9869229901 is about 2145.0022658695.

The spelling of 9869229901 in words is "nine billion, eight hundred sixty-nine million, two hundred twenty-nine thousand, nine hundred one".