201322123122 has 32 divisors (see below), whose sum is σ = 405769170240. Its totient is φ = 66587097600.

The previous prime is 201322123111. The next prime is 201322123141. The reversal of 201322123122 is 221321223102.

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, 1435018 + ... + 1569050.

It is an arithmetic number, because the mean of its divisors is an integer number (12680286570).

Almost surely, 2^201322123122 is an apocalyptic number.

201322123122 is an abundant number, since it is smaller than the sum of its proper divisors (204447047118).

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

201322123122 is a wasteful number, since it uses less digits than its factorization.

201322123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135978.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 201322123122 its reverse (221321223102), we get a palindrome (422643346224).

The spelling of 201322123122 in words is "two hundred one billion, three hundred twenty-two million, one hundred twenty-three thousand, one hundred twenty-two".