201201222210 has 32 divisors (see below), whose sum is σ = 488308590720. Its totient is φ = 53050808448.

The previous prime is 201201222193. The next prime is 201201222241. The reversal of 201201222210 is 12222102102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201201222210.

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, 37675462 + ... + 37680801.

It is an arithmetic number, because the mean of its divisors is an integer number (15259643460).

Almost surely, 2^201201222210 is an apocalyptic number.

201201222210 is an abundant number, since it is smaller than the sum of its proper divisors (287107368510).

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

201201222210 is a wasteful number, since it uses less digits than its factorization.

201201222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75356362.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201201222210 its reverse (12222102102), we get a palindrome (213423324312).

The spelling of 201201222210 in words is "two hundred one billion, two hundred one million, two hundred twenty-two thousand, two hundred ten".