2015222 has 16 divisors (see below), whose sum is σ = 3326400. Its totient is φ = 908040.

The previous prime is 2015213. The next prime is 2015267. The reversal of 2015222 is 2225102.

It is a super-2 number, since 2×2015222² = 8122239418568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2015197 and 2015206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2729 + ... + 3387.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

2^2015222 is an apocalyptic number.

2015222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2015222 is a deficient number, since it is larger than the sum of its proper divisors (1311178).

2015222 is a wasteful number, since it uses less digits than its factorization.

2015222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2015222 is about 1419.5851506690. The cubic root of 2015222 is about 126.3109394398.

It can be divided in two parts, 20152 and 22, that multiplied together give a palindrome (443344).

The spelling of 2015222 in words is "two million, fifteen thousand, two hundred twenty-two".