15222 has 16 divisors (see below), whose sum is σ = 31680. Its totient is φ = 4872.

The previous prime is 15217. The next prime is 15227. The reversal of 15222 is 22251.

It is an interprime number because it is at equal distance from previous prime (15217) and next prime (15227).

It is a plaindrome in base 8 and base 15.

It is a junction number, because it is equal to n+sod(n) for n = 15198 and 15207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15227) 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, 229 + ... + 287.

It is an arithmetic number, because the mean of its divisors is an integer number (1980).

2¹⁵²²² is an apocalyptic number.

15222 is an abundant number, since it is smaller than the sum of its proper divisors (16458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15840).

15222 is a wasteful number, since it uses less digits than its factorization.

15222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107.

The product of its digits is 40, while the sum is 12.

The square root of 15222 is about 123.3774695801. The cubic root of 15222 is about 24.7831918714.

Adding to 15222 its reverse (22251), we get a palindrome (37473).

The spelling of 15222 in words is "fifteen thousand, two hundred twenty-two".