201212011022201 has 8 divisors (see below), whose sum is σ = 206808440142600. Its totient is φ = 195689706791040.

The previous prime is 201212011022083. The next prime is 201212011022203. The reversal of 201212011022201 is 102220110212102.

It can be written as a sum of positive squares in 4 ways, for example, as 18353746576 + 201193657275625 = 135476^2 + 14184275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201212011022201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201212011022201.

It is not an unprimeable number, because it can be changed into a prime (201212011022203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18531216806 + ... + 18531227663.

It is an arithmetic number, because the mean of its divisors is an integer number (25851055017825).

Almost surely, 2^{201212011022201} is an apocalyptic number.

It is an amenable number.

201212011022201 is a deficient number, since it is larger than the sum of its proper divisors (5596429120399).

201212011022201 is an equidigital number, since it uses as much as digits as its factorization.

201212011022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37062444619.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201212011022201 its reverse (102220110212102), we get a palindrome (303432121234303).

The spelling of 201212011022201 in words is "two hundred one trillion, two hundred twelve billion, eleven million, twenty-two thousand, two hundred one".