21010222330 has 8 divisors (see below), whose sum is σ = 37818400212. Its totient is φ = 8404088928.

The previous prime is 21010222309. The next prime is 21010222391. The reversal of 21010222330 is 3322201012.

It can be written as a sum of positive squares in 2 ways, for example, as 20406979609 + 603242721 = 142853^2 + 24561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050511107 + ... + 1050511126.

Almost surely, 2^21010222330 is an apocalyptic number.

21010222330 is a deficient number, since it is larger than the sum of its proper divisors (16808177882).

21010222330 is a wasteful number, since it uses less digits than its factorization.

21010222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101022240.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21010222330 its reverse (3322201012), we get a palindrome (24332423342).

The spelling of 21010222330 in words is "twenty-one billion, ten million, two hundred twenty-two thousand, three hundred thirty".