21030010224 has 20 divisors (see below), whose sum is σ = 54327526536. Its totient is φ = 7010003392.

The previous prime is 21030010207. The next prime is 21030010229. The reversal of 21030010224 is 42201003012.

It is a super-2 number, since 2×21030010224² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030010229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219062559 + ... + 219062654.

Almost surely, 2^21030010224 is an apocalyptic number.

21030010224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21030010224 is an abundant number, since it is smaller than the sum of its proper divisors (33297516312).

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

21030010224 is a wasteful number, since it uses less digits than its factorization.

21030010224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438125224 (or 438125218 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21030010224 its reverse (42201003012), we get a palindrome (63231013236).

The spelling of 21030010224 in words is "twenty-one billion, thirty million, ten thousand, two hundred twenty-four".