9214211909 has 6 divisors (see below), whose sum is σ = 10718573094. Its totient is φ = 7897895880.

The previous prime is 9214211891. The next prime is 9214211959. The reversal of 9214211909 is 9091124129.

9214211909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8141452900 + 1072759009 = 90230^2 + 32753^2 .

It is not a de Polignac number, because 9214211909 - 2⁸ = 9214211653 is a prime.

It is a super-2 number, since 2×9214211909² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9214211959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94022522 + ... + 94022619.

It is an arithmetic number, because the mean of its divisors is an integer number (1786428849).

Almost surely, 2^9214211909 is an apocalyptic number.

It is an amenable number.

9214211909 is a deficient number, since it is larger than the sum of its proper divisors (1504361185).

9214211909 is a wasteful number, since it uses less digits than its factorization.

9214211909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188045155 (or 188045148 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 9214211909 is about 95990.6865742714. The cubic root of 9214211909 is about 2096.4575127282.

The spelling of 9214211909 in words is "nine billion, two hundred fourteen million, two hundred eleven thousand, nine hundred nine".