23221221332330 has 24 divisors (see below), whose sum is σ = 48622394056068. Its totient is φ = 7961561599488.

The previous prime is 23221221332251. The next prime is 23221221332339. The reversal of 23221221332330 is 3323312212232.

It can be written as a sum of positive squares in 2 ways, for example, as 23124393941089 + 96827391241 = 4808783^2 + 311171^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23221221332293 and 23221221332302.

It is not an unprimeable number, because it can be changed into a prime (23221221332339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23695123319 + ... + 23695124298.

Almost surely, 2^{23221221332330} is an apocalyptic number.

23221221332330 is an abundant number, since it is smaller than the sum of its proper divisors (25401172723738).

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

23221221332330 is a wasteful number, since it uses less digits than its factorization.

23221221332330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47390247638 (or 47390247631 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 23221221332330 its reverse (3323312212232), we get a palindrome (26544533544562).

The spelling of 23221221332330 in words is "twenty-three trillion, two hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, three hundred thirty".