10221043340 has 48 divisors (see below), whose sum is σ = 22008327264. Its totient is φ = 3984960000.

The previous prime is 10221043253. The next prime is 10221043397. The reversal of 10221043340 is 4334012201.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 968090 + ... + 978590.

It is an arithmetic number, because the mean of its divisors is an integer number (458506818).

Almost surely, 2^10221043340 is an apocalyptic number.

10221043340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10221043340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11004163632).

10221043340 is an abundant number, since it is smaller than the sum of its proper divisors (11787283924).

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

10221043340 is a wasteful number, since it uses less digits than its factorization.

10221043340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738 (or 11736 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10221043340 its reverse (4334012201), we get a palindrome (14555055541).

The spelling of 10221043340 in words is "ten billion, two hundred twenty-one million, forty-three thousand, three hundred forty".