201222330321 has 32 divisors (see below), whose sum is σ = 273177999360. Its totient is φ = 131721201216.

The previous prime is 201222330317. The next prime is 201222330343. The reversal of 201222330321 is 123033222102.

It is a happy number.

It is not a de Polignac number, because 201222330321 - 2² = 201222330317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201222330391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115180770 + ... + 115182516.

It is an arithmetic number, because the mean of its divisors is an integer number (8536812480).

Almost surely, 2^201222330321 is an apocalyptic number.

It is an amenable number.

201222330321 is a deficient number, since it is larger than the sum of its proper divisors (71955669039).

201222330321 is a wasteful number, since it uses less digits than its factorization.

201222330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 201222330321 its reverse (123033222102), we get a palindrome (324255552423).

The spelling of 201222330321 in words is "two hundred one billion, two hundred twenty-two million, three hundred thirty thousand, three hundred twenty-one".