201212012444444 has 6 divisors (see below), whose sum is σ = 352121021777784. Its totient is φ = 100606006222220.

The previous prime is 201212012444371. The next prime is 201212012444453. The reversal of 201212012444444 is 444444210212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25151501555552 + ... + 25151501555559.

It is an arithmetic number, because the mean of its divisors is an integer number (58686836962964).

Almost surely, 2^{201212012444444} is an apocalyptic number.

It is an amenable number.

201212012444444 is a deficient number, since it is larger than the sum of its proper divisors (150909009333340).

201212012444444 is a wasteful number, since it uses less digits than its factorization.

201212012444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50303003111115 (or 50303003111113 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 35.

Adding to 201212012444444 its reverse (444444210212102), we get a palindrome (645656222656546).

The spelling of 201212012444444 in words is "two hundred one trillion, two hundred twelve billion, twelve million, four hundred forty-four thousand, four hundred forty-four".