9020212509 has 16 divisors (see below), whose sum is σ = 14994639360. Its totient is φ = 4685824560.

The previous prime is 9020212489. The next prime is 9020212559. The reversal of 9020212509 is 9052120209.

9020212509 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9020212509 - 2¹² = 9020208413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9020212559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19524039 + ... + 19524500.

It is an arithmetic number, because the mean of its divisors is an integer number (937164960).

Almost surely, 2^9020212509 is an apocalyptic number.

It is an amenable number.

9020212509 is a deficient number, since it is larger than the sum of its proper divisors (5974426851).

9020212509 is a wasteful number, since it uses less digits than its factorization.

9020212509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39048560.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 9020212509 is about 94974.7993364556. The cubic root of 9020212509 is about 2081.6398333408.

The spelling of 9020212509 in words is "nine billion, twenty million, two hundred twelve thousand, five hundred nine".