10221510 has 32 divisors (see below), whose sum is σ = 26419680. Its totient is φ = 2515968.

The previous prime is 10221481. The next prime is 10221511. The reversal of 10221510 is 1512201.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 12715 + ... + 13494.

It is an arithmetic number, because the mean of its divisors is an integer number (825615).

Almost surely, 2^10221510 is an apocalyptic number.

10221510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221510 is an abundant number, since it is smaller than the sum of its proper divisors (16198170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221510 is a wasteful number, since it uses less digits than its factorization.

10221510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26232.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 10221510 is about 3197.1096321521. The cubic root of 10221510 is about 217.0226285448.

Adding to 10221510 its reverse (1512201), we get a palindrome (11733711).

It can be divided in two parts, 10221 and 510, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 10221510 in words is "ten million, two hundred twenty-one thousand, five hundred ten".