201212210222 has 32 divisors (see below), whose sum is σ = 322687825920. Its totient is φ = 93765700480.

The previous prime is 201212210219. The next prime is 201212210263. The reversal of 201212210222 is 222012212102.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 201212210222.

It is a congruent 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, 10464197 + ... + 10483407.

It is an arithmetic number, because the mean of its divisors is an integer number (10083994560).

Almost surely, 2^201212210222 is an apocalyptic number.

201212210222 is a deficient number, since it is larger than the sum of its proper divisors (121475615698).

201212210222 is a wasteful number, since it uses less digits than its factorization.

201212210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22216.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201212210222 its reverse (222012212102), we get a palindrome (423224422324).

The spelling of 201212210222 in words is "two hundred one billion, two hundred twelve million, two hundred ten thousand, two hundred twenty-two".