10320221250 has 60 divisors (see below), whose sum is σ = 27941685486. Its totient is φ = 2752056000.

The previous prime is 10320221243. The next prime is 10320221291. The reversal of 10320221250 is 5212202301.

It can be written as a sum of positive squares in 5 ways, for example, as 639432369 + 9680788881 = 25287^2 + 98391^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 447427 + ... + 469926.

Almost surely, 2^10320221250 is an apocalyptic number.

10320221250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10320221250 is an abundant number, since it is smaller than the sum of its proper divisors (17621464236).

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

10320221250 is an equidigital number, since it uses as much as digits as its factorization.

10320221250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917381 (or 917363 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 10320221250 its reverse (5212202301), we get a palindrome (15532423551).

The spelling of 10320221250 in words is "ten billion, three hundred twenty million, two hundred twenty-one thousand, two hundred fifty".