12210015 has 16 divisors (see below), whose sum is σ = 20210400. Its totient is φ = 6287232.

The previous prime is 12210007. The next prime is 12210019. The reversal of 12210015 is 51001221.

It is not a de Polignac number, because 12210015 - 2³ = 12210007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13600 + ... + 14469.

It is an arithmetic number, because the mean of its divisors is an integer number (1263150).

Almost surely, 2^12210015 is an apocalyptic number.

12210015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12210015 is a deficient number, since it is larger than the sum of its proper divisors (8000385).

12210015 is a wasteful number, since it uses less digits than its factorization.

12210015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28106.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 12210015 is about 3494.2831882948. The cubic root of 12210015 is about 230.2707272075.

Adding to 12210015 its reverse (51001221), we get a palindrome (63211236).

The spelling of 12210015 in words is "twelve million, two hundred ten thousand, fifteen".