12220115 has 8 divisors (see below), whose sum is σ = 14850240. Its totient is φ = 9652032.

The previous prime is 12220111. The next prime is 12220129. The reversal of 12220115 is 51102221.

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 12220115 - 2² = 12220111 is a prime.

It is a super-2 number, since 2×12220115² = 298662421226450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12220115.

It is not an unprimeable number, because it can be changed into a prime (12220111) 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, 15074 + ... + 15863.

It is an arithmetic number, because the mean of its divisors is an integer number (1856280).

Almost surely, 2^12220115 is an apocalyptic number.

12220115 is a deficient number, since it is larger than the sum of its proper divisors (2630125).

12220115 is an equidigital number, since it uses as much as digits as its factorization.

12220115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31021.

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

The square root of 12220115 is about 3495.7281072761. The cubic root of 12220115 is about 230.3342022419.

Adding to 12220115 its reverse (51102221), we get a palindrome (63322336).

The spelling of 12220115 in words is "twelve million, two hundred twenty thousand, one hundred fifteen".