10221513 has 8 divisors (see below), whose sum is σ = 13918848. Its totient is φ = 6669264.

The previous prime is 10221511. The next prime is 10221517. The reversal of 10221513 is 31512201.

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

It is not a de Polignac number, because 10221513 - 2¹ = 10221511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10221492 and 10221501.

It is not an unprimeable number, because it can be changed into a prime (10221511) 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, 36106 + ... + 36387.

It is an arithmetic number, because the mean of its divisors is an integer number (1739856).

Almost surely, 2^10221513 is an apocalyptic number.

It is an amenable number.

10221513 is a deficient number, since it is larger than the sum of its proper divisors (3697335).

10221513 is an equidigital number, since it uses as much as digits as its factorization.

10221513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72543.

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

The square root of 10221513 is about 3197.1101013259. The cubic root of 10221513 is about 217.0226497768.

Adding to 10221513 its reverse (31512201), we get a palindrome (41733714).

The spelling of 10221513 in words is "ten million, two hundred twenty-one thousand, five hundred thirteen".