13221050 has 24 divisors (see below), whose sum is σ = 24704892. Its totient is φ = 5264000.

The previous prime is 13221037. The next prime is 13221059. The reversal of 13221050 is 5012231.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6723649 + 6497401 = 2593^2 + 2549^2 .

It is not an unprimeable number, because it can be changed into a prime (13221059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13580 + ... + 14520.

Almost surely, 2^13221050 is an apocalyptic number.

13221050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221050 is a deficient number, since it is larger than the sum of its proper divisors (11483842).

13221050 is a wasteful number, since it uses less digits than its factorization.

13221050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 13221050 is about 3636.0761818202. The cubic root of 13221050 is about 236.4587099599.

Adding to 13221050 its reverse (5012231), we get a palindrome (18233281).

The spelling of 13221050 in words is "thirteen million, two hundred twenty-one thousand, fifty".