201222120122 has 16 divisors (see below), whose sum is σ = 307245960000. Its totient is φ = 98821773600.

The previous prime is 201222120091. The next prime is 201222120133. The reversal of 201222120122 is 221021222102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201222120122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3716372 + ... + 3770127.

It is an arithmetic number, because the mean of its divisors is an integer number (19202872500).

Almost surely, 2^201222120122 is an apocalyptic number.

201222120122 is a deficient number, since it is larger than the sum of its proper divisors (106023839878).

201222120122 is a wasteful number, since it uses less digits than its factorization.

201222120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486741.

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

Adding to 201222120122 its reverse (221021222102), we get a palindrome (422243342224).

The spelling of 201222120122 in words is "two hundred one billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty-two".