21227110330 has 8 divisors (see below), whose sum is σ = 38208798612. Its totient is φ = 8490844128.

The previous prime is 21227110291. The next prime is 21227110337. The reversal of 21227110330 is 3301172212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21129238881 + 97871449 = 145359^2 + 9893^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21227110337) 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, 1061355507 + ... + 1061355526.

Almost surely, 2^21227110330 is an apocalyptic number.

21227110330 is a deficient number, since it is larger than the sum of its proper divisors (16981688282).

21227110330 is a wasteful number, since it uses less digits than its factorization.

21227110330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122711040.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 21227110330 its reverse (3301172212), we get a palindrome (24528282542).

The spelling of 21227110330 in words is "twenty-one billion, two hundred twenty-seven million, one hundred ten thousand, three hundred thirty".