13150221 has 8 divisors (see below), whose sum is σ = 20038464. Its totient is φ = 7514400.

The previous prime is 13150211. The next prime is 13150237. The reversal of 13150221 is 12205131.

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

It is not a de Polignac number, because 13150221 - 2¹⁵ = 13117453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13150221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13150211) 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, 313080 + ... + 313121.

It is an arithmetic number, because the mean of its divisors is an integer number (2504808).

Almost surely, 2^13150221 is an apocalyptic number.

It is an amenable number.

13150221 is a deficient number, since it is larger than the sum of its proper divisors (6888243).

13150221 is an equidigital number, since it uses as much as digits as its factorization.

13150221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626211.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 13150221 is about 3626.3233446564. The cubic root of 13150221 is about 236.0356943521.

Adding to 13150221 its reverse (12205131), we get a palindrome (25355352).

The spelling of 13150221 in words is "thirteen million, one hundred fifty thousand, two hundred twenty-one".