10011221320 has 32 divisors (see below), whose sum is σ = 22536763200. Its totient is φ = 4002441408.

The previous prime is 10011221317. The next prime is 10011221321. The reversal of 10011221320 is 2312211001.

It is a self number, because there is not a number n which added to its sum of digits gives 10011221320.

It is not an unprimeable number, because it can be changed into a prime (10011221321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16501 + ... + 142459.

It is an arithmetic number, because the mean of its divisors is an integer number (704273850).

Almost surely, 2^10011221320 is an apocalyptic number.

10011221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011221320 is an abundant number, since it is smaller than the sum of its proper divisors (12525541880).

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

10011221320 is a wasteful number, since it uses less digits than its factorization.

10011221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127957 (or 127953 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10011221320 its reverse (2312211001), we get a palindrome (12323432321).

The spelling of 10011221320 in words is "ten billion, eleven million, two hundred twenty-one thousand, three hundred twenty".