12015122 has 8 divisors (see below), whose sum is σ = 20597376. Its totient is φ = 5149332.

The previous prime is 12015097. The next prime is 12015139. The reversal of 12015122 is 22151021.

12015122 is digitally balanced in base 2, because in such base 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 Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 858223 = 12015122 / (1 + 2 + 0 + 1 + 5 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12015097 and 12015106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429098 + ... + 429125.

It is an arithmetic number, because the mean of its divisors is an integer number (2574672).

Almost surely, 2^12015122 is an apocalyptic number.

12015122 is a deficient number, since it is larger than the sum of its proper divisors (8582254).

12015122 is an equidigital number, since it uses as much as digits as its factorization.

12015122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858232.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12015122 is about 3466.2836006305. The cubic root of 12015122 is about 229.0389768581.

Adding to 12015122 its reverse (22151021), we get a palindrome (34166143).

The spelling of 12015122 in words is "twelve million, fifteen thousand, one hundred twenty-two".