9910009901 has 4 divisors (see below), whose sum is σ = 10810919904. Its totient is φ = 9009099900.

The previous prime is 9910009883. The next prime is 9910009913. The reversal of 9910009901 is 1099000199.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1099000199 = 11 ⋅99909109.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9910009901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9910009301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450454985 + ... + 450455006.

It is an arithmetic number, because the mean of its divisors is an integer number (2702729976).

Almost surely, 2^9910009901 is an apocalyptic number.

It is an amenable number.

9910009901 is a deficient number, since it is larger than the sum of its proper divisors (900910003).

9910009901 is a wasteful number, since it uses less digits than its factorization.

9910009901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900910002.

The product of its (nonzero) digits is 6561, while the sum is 38.

The square root of 9910009901 is about 99549.0326472337. The cubic root of 9910009901 is about 2147.9526138479.

The spelling of 9910009901 in words is "nine billion, nine hundred ten million, nine thousand, nine hundred one".