15222301 has 4 divisors (see below), whose sum is σ = 15576352. Its totient is φ = 14868252.

The previous prime is 15222257. The next prime is 15222323. The reversal of 15222301 is 10322251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10322251 = 461 ⋅22391.

It is a cyclic number.

It is not a de Polignac number, because 15222301 - 2¹⁷ = 15091229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15222371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176961 + ... + 177046.

It is an arithmetic number, because the mean of its divisors is an integer number (3894088).

Almost surely, 2^15222301 is an apocalyptic number.

It is an amenable number.

15222301 is a deficient number, since it is larger than the sum of its proper divisors (354051).

15222301 is an equidigital number, since it uses as much as digits as its factorization.

15222301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354050.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 15222301 is about 3901.5767325531. The cubic root of 15222301 is about 247.8335522470.

Adding to 15222301 its reverse (10322251), we get a palindrome (25544552).

The spelling of 15222301 in words is "fifteen million, two hundred twenty-two thousand, three hundred one".