12209213065 has 16 divisors (see below), whose sum is σ = 16900555392. Its totient is φ = 8293785984.

The previous prime is 12209213053. The next prime is 12209213111. The reversal of 12209213065 is 56031290221.

It is a cyclic number.

It is not a de Polignac number, because 12209213065 - 2¹⁵ = 12209180297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1626324 + ... + 1633813.

It is an arithmetic number, because the mean of its divisors is an integer number (1056284712).

Almost surely, 2^12209213065 is an apocalyptic number.

It is an amenable number.

12209213065 is a deficient number, since it is larger than the sum of its proper divisors (4691342327).

12209213065 is a wasteful number, since it uses less digits than its factorization.

12209213065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260256.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 12209213065 in words is "twelve billion, two hundred nine million, two hundred thirteen thousand, sixty-five".