15227222 has 8 divisors (see below), whose sum is σ = 22867272. Its totient is φ = 7604800.

The previous prime is 15227221. The next prime is 15227243. The reversal of 15227222 is 22272251.

15227222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15227221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1979 + ... + 5862.

It is an arithmetic number, because the mean of its divisors is an integer number (2858409).

Almost surely, 2^15227222 is an apocalyptic number.

15227222 is a deficient number, since it is larger than the sum of its proper divisors (7640050).

15227222 is an equidigital number, since it uses as much as digits as its factorization.

15227222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8814.

The product of its digits is 1120, while the sum is 23.

The square root of 15227222 is about 3902.2073240667. The cubic root of 15227222 is about 247.8602555580.

Adding to 15227222 its reverse (22272251), we get a palindrome (37499473).

The spelling of 15227222 in words is "fifteen million, two hundred twenty-seven thousand, two hundred twenty-two".