201223220330 has 32 divisors (see below), whose sum is σ = 395592640128. Its totient is φ = 73086264000.

The previous prime is 201223220291. The next prime is 201223220417. The reversal of 201223220330 is 33022322102.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978446 + ... + 1166105.

It is an arithmetic number, because the mean of its divisors is an integer number (12362270004).

Almost surely, 2^201223220330 is an apocalyptic number.

201223220330 is a deficient number, since it is larger than the sum of its proper divisors (194369419798).

201223220330 is a wasteful number, since it uses less digits than its factorization.

201223220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145422.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 201223220330 its reverse (33022322102), we get a palindrome (234245542432).

The spelling of 201223220330 in words is "two hundred one billion, two hundred twenty-three million, two hundred twenty thousand, three hundred thirty".