15222230 has 32 divisors (see below), whose sum is σ = 29138400. Its totient is φ = 5709312.

The previous prime is 15222227. The next prime is 15222239. The reversal of 15222230 is 3222251.

15222230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15222199 and 15222208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15222239) 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, 21116 + ... + 21824.

It is an arithmetic number, because the mean of its divisors is an integer number (910575).

Almost surely, 2^15222230 is an apocalyptic number.

15222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15222230 is a deficient number, since it is larger than the sum of its proper divisors (13916170).

15222230 is a wasteful number, since it uses less digits than its factorization.

15222230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 15222230 is about 3901.5676336570. The cubic root of 15222230 is about 247.8331669305.

Adding to 15222230 its reverse (3222251), we get a palindrome (18444481).

The spelling of 15222230 in words is "fifteen million, two hundred twenty-two thousand, two hundred thirty".