201212444442 has 32 divisors (see below), whose sum is σ = 402856027200. Its totient is φ = 66999003008.

The previous prime is 201212444441. The next prime is 201212444449. The reversal of 201212444442 is 244444212102.

It is not an unprimeable number, because it can be changed into a prime (201212444441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32093284 + ... + 32099552.

It is an arithmetic number, because the mean of its divisors is an integer number (12589250850).

Almost surely, 2^201212444442 is an apocalyptic number.

201212444442 is an abundant number, since it is smaller than the sum of its proper divisors (201643582758).

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

201212444442 is a wasteful number, since it uses less digits than its factorization.

201212444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11150.

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 201212444442 its reverse (244444212102), we get a palindrome (445656656544).

The spelling of 201212444442 in words is "two hundred one billion, two hundred twelve million, four hundred forty-four thousand, four hundred forty-two".