201333121122 has 128 divisors (see below), whose sum is σ = 489408675840. Its totient is φ = 53985657600.

The previous prime is 201333121117. The next prime is 201333121133. The reversal of 201333121122 is 221121333102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70616997 + ... + 70619847.

It is an arithmetic number, because the mean of its divisors is an integer number (3823505280).

Almost surely, 2^201333121122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201333121122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244704337920).

201333121122 is an abundant number, since it is smaller than the sum of its proper divisors (288075554718).

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

201333121122 is a wasteful number, since it uses less digits than its factorization.

201333121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 201333121122 its reverse (221121333102), we get a palindrome (422454454224).

The spelling of 201333121122 in words is "two hundred one billion, three hundred thirty-three million, one hundred twenty-one thousand, one hundred twenty-two".