12210537 has 8 divisors (see below), whose sum is σ = 16842240. Its totient is φ = 7859600.

The previous prime is 12210503. The next prime is 12210563. The reversal of 12210537 is 73501221.

12210537 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12210537 - 2¹¹ = 12208489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12210577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70089 + ... + 70262.

It is an arithmetic number, because the mean of its divisors is an integer number (2105280).

Almost surely, 2^12210537 is an apocalyptic number.

It is an amenable number.

12210537 is a deficient number, since it is larger than the sum of its proper divisors (4631703).

12210537 is a wasteful number, since it uses less digits than its factorization.

12210537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140383.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12210537 is about 3494.3578809275. The cubic root of 12210537 is about 230.2740086560.

Adding to 12210537 its reverse (73501221), we get a palindrome (85711758).

The spelling of 12210537 in words is "twelve million, two hundred ten thousand, five hundred thirty-seven".