10521210 has 32 divisors (see below), whose sum is σ = 28858752. Its totient is φ = 2404800.

The previous prime is 10521169. The next prime is 10521221. The reversal of 10521210 is 1212501.

It is a super-2 number, since 2×10521210² = 221391719728200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24841 + ... + 25260.

It is an arithmetic number, because the mean of its divisors is an integer number (901836).

Almost surely, 2^10521210 is an apocalyptic number.

10521210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10521210 is an abundant number, since it is smaller than the sum of its proper divisors (18337542).

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

10521210 is a wasteful number, since it uses less digits than its factorization.

10521210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50118.

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

The square root of 10521210 is about 3243.6414721729. The cubic root of 10521210 is about 219.1233016379.

Adding to 10521210 its reverse (1212501), we get a palindrome (11733711).

It can be divided in two parts, 10521 and 210, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 10521210 in words is "ten million, five hundred twenty-one thousand, two hundred ten".