9999021301 has 4 divisors (see below), whose sum is σ = 10525285600. Its totient is φ = 9472757004.

The previous prime is 9999021299. The next prime is 9999021337. The reversal of 9999021301 is 1031209999.

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: 1031209999 = 1931 ⋅534029.

It is a cyclic number.

It is not a de Polignac number, because 9999021301 - 2¹ = 9999021299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999021101) 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, 263132121 + ... + 263132158.

It is an arithmetic number, because the mean of its divisors is an integer number (2631321400).

Almost surely, 2^9999021301 is an apocalyptic number.

It is an amenable number.

9999021301 is a deficient number, since it is larger than the sum of its proper divisors (526264299).

9999021301 is a wasteful number, since it uses less digits than its factorization.

9999021301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526264298.

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 9999021301 is about 99995.1063852627. The cubic root of 9999021301 is about 2154.3644029696.

The spelling of 9999021301 in words is "nine billion, nine hundred ninety-nine million, twenty-one thousand, three hundred one".