12222037 has 4 divisors (see below), whose sum is σ = 12230176. Its totient is φ = 12213900.

The previous prime is 12222013. The next prime is 12222047. The reversal of 12222037 is 73022221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12222037 - 2¹⁵ = 12189269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089 + ... + 5062.

It is an arithmetic number, because the mean of its divisors is an integer number (3057544).

Almost surely, 2^12222037 is an apocalyptic number.

It is an amenable number.

12222037 is a deficient number, since it is larger than the sum of its proper divisors (8139).

12222037 is an equidigital number, since it uses as much as digits as its factorization.

12222037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8138.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 12222037 is about 3496.0030034312. The cubic root of 12222037 is about 230.3462773909.

Adding to 12222037 its reverse (73022221), we get a palindrome (85244258).

The spelling of 12222037 in words is "twelve million, two hundred twenty-two thousand, thirty-seven".