10521302210 has 24 divisors (see below), whose sum is σ = 20117900340. Its totient is φ = 3960959744.

The previous prime is 10521302149. The next prime is 10521302219. The reversal of 10521302210 is 1220312501.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8807259409 + 1714042801 = 93847^2 + 41401^2 .

It is a super-2 number, since 2×10521302210² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (10521302219) 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, 1817405 + ... + 1823184.

Almost surely, 2^10521302210 is an apocalyptic number.

10521302210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10521302210 is a deficient number, since it is larger than the sum of its proper divisors (9596598130).

10521302210 is a wasteful number, since it uses less digits than its factorization.

10521302210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640630 (or 3640613 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 10521302210 its reverse (1220312501), we get a palindrome (11741614711).

The spelling of 10521302210 in words is "ten billion, five hundred twenty-one million, three hundred two thousand, two hundred ten".