21010224030 has 16 divisors (see below), whose sum is σ = 50424537744. Its totient is φ = 5602726400.

The previous prime is 21010224029. The next prime is 21010224047. The reversal of 21010224030 is 3042201012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350170371 + ... + 350170430.

It is an arithmetic number, because the mean of its divisors is an integer number (3151533609).

Almost surely, 2^21010224030 is an apocalyptic number.

21010224030 is an abundant number, since it is smaller than the sum of its proper divisors (29414313714).

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

21010224030 is a wasteful number, since it uses less digits than its factorization.

21010224030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700340811.

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

Adding to 21010224030 its reverse (3042201012), we get a palindrome (24052425042).

The spelling of 21010224030 in words is "twenty-one billion, ten million, two hundred twenty-four thousand, thirty".