10221315 has 64 divisors (see below), whose sum is σ = 19160064. Its totient is φ = 4612608.

The previous prime is 10221293. The next prime is 10221347. The reversal of 10221315 is 51312201.

It is not a de Polignac number, because 10221315 - 2⁵ = 10221283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 10221294 and 10221303.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 192829 + ... + 192881.

It is an arithmetic number, because the mean of its divisors is an integer number (299376).

Almost surely, 2^10221315 is an apocalyptic number.

10221315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10221315 is a deficient number, since it is larger than the sum of its proper divisors (8938749).

10221315 is a wasteful number, since it uses less digits than its factorization.

10221315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

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

The square root of 10221315 is about 3197.0791357112. The cubic root of 10221315 is about 217.0212484591.

Adding to 10221315 its reverse (51312201), we get a palindrome (61533516).

The spelling of 10221315 in words is "ten million, two hundred twenty-one thousand, three hundred fifteen".