201211232442 has 96 divisors (see below), whose sum is σ = 459587169216. Its totient is φ = 58237766400.

The previous prime is 201211232437. The next prime is 201211232449. The reversal of 201211232442 is 244232112102.

It is not an unprimeable number, because it can be changed into a prime (201211232449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26565768 + ... + 26573340.

It is an arithmetic number, because the mean of its divisors is an integer number (4787366346).

Almost surely, 2^201211232442 is an apocalyptic number.

201211232442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 201211232442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229793584608).

201211232442 is an abundant number, since it is smaller than the sum of its proper divisors (258375936774).

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

201211232442 is a wasteful number, since it uses less digits than its factorization.

201211232442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8396 (or 8373 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 201211232442 its reverse (244232112102), we get a palindrome (445443344544).

The spelling of 201211232442 in words is "two hundred one billion, two hundred eleven million, two hundred thirty-two thousand, four hundred forty-two".