9990222011 has 16 divisors (see below), whose sum is σ = 12460739328. Its totient is φ = 7781215200.

The previous prime is 9990221999. The next prime is 9990222019. The reversal of 9990222011 is 1102220999.

It is not a de Polignac number, because 9990222011 - 2¹⁸ = 9989959867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9990222019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158741 + ... + 212553.

It is an arithmetic number, because the mean of its divisors is an integer number (778796208).

Almost surely, 2^9990222011 is an apocalyptic number.

9990222011 is a deficient number, since it is larger than the sum of its proper divisors (2470517317).

9990222011 is a wasteful number, since it uses less digits than its factorization.

9990222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56242.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 9990222011 is about 99951.0980980199. The cubic root of 9990222011 is about 2153.7322597469.

The spelling of 9990222011 in words is "nine billion, nine hundred ninety million, two hundred twenty-two thousand, eleven".