22012220330 has 32 divisors (see below), whose sum is σ = 42324002064. Its totient is φ = 8213610496.

The previous prime is 22012220273. The next prime is 22012220333. The reversal of 22012220330 is 3302221022.

It can be written as a sum of positive squares in 8 ways, for example, as 4832613289 + 17179607041 = 69517^2 + 131071^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 22012220299 and 22012220308.

It is not an unprimeable number, because it can be changed into a prime (22012220333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553727 + ... + 592146.

Almost surely, 2^22012220330 is an apocalyptic number.

22012220330 is a deficient number, since it is larger than the sum of its proper divisors (20311781734).

22012220330 is a wasteful number, since it uses less digits than its factorization.

22012220330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146010.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22012220330 its reverse (3302221022), we get a palindrome (25314441352).

The spelling of 22012220330 in words is "twenty-two billion, twelve million, two hundred twenty thousand, three hundred thirty".